Sabah biraz mide bulantısı hissettim, bu yüzden iştahım da yoktu ve kahvaltıda sadece çay içtim.

Sabah by itself can mean in the morning / this morning, depending on context.

• Sabah biraz mide bulantısı hissettim = I felt a bit nauseous this morning / in the morning
• Bu sabah is more explicitly this morning
• Sabahleyin also means in the morning, but sounds a bit more formal or stylistically different

So Sabah is a very natural, common way to begin a sentence like this.

Yes, biraz means a little / a bit / somewhat.

In this sentence, it softens the statement:

• biraz mide bulantısı hissettim = I felt a bit nauseous / I felt some nausea

It does not necessarily mean the speaker measured the amount exactly; it just suggests the nausea was present but not described as extreme.

Turkish often expresses this idea with a noun phrase plus hissetmek (to feel):

• mide bulantısı = nausea
• hissettim = I felt

So literally it is I felt nausea.

This is a very normal Turkish structure. English often prefers an adjective like I felt nauseous, but Turkish commonly uses the noun:

• baş ağrısı hissettim = I felt a headache / more naturally I had a headache coming on
• yorgunluk hissettim = I felt tiredness / fatigue

Mide bulantısı is a noun phrase meaning nausea.

It is built from:

• mide = stomach
• bulantı = nausea / queasiness
• bulantısı = its nausea in a compound form

This is a common Turkish noun compound pattern. You do not need to translate it word-for-word every time; just learn mide bulantısı as the normal expression for nausea.

Because of Turkish vowel harmony.

The verb is hissetmek (to feel). In the past tense, first person singular:

• stem: hisset-
• past tense: -ti / -tı / -tu / -tü
• first person: -m

The vowel in the ending follows vowel harmony, so it becomes -tim here:

• hissettim = I felt

This double tt is normal because the verb stem already ends in t, and the past tense suffix also begins with t.

Bu yüzden means because of this / for this reason / so / therefore.

In this sentence it connects cause and result:

• nausea in the morning
• therefore no appetite
• therefore only tea at breakfast

It is very common and neutral in tone. Other possible connectors are:

• o yüzden = also very common, often more conversational
• bu nedenle = more formal, like for this reason
• bu sebeple = also for this reason, somewhat formal

The -ım is the first person singular possessive suffix, meaning my.

• iştah = appetite
• iştahım = my appetite

Turkish usually expresses possession with a suffix on the noun rather than a separate word like my.

So:

• iştahım yoktu = literally my appetite was absent
• natural English: I had no appetite

Here da means also / too.

So iştahım da yoktu suggests something like:

• I also had no appetite
• my appetite was gone too

It links this clause to the previous idea. The speaker first says they felt nauseous, and then adds another related consequence: their appetite was gone too.

Important: this da is a separate word meaning also/too. It is not the same as the locative suffix -da/-de meaning in/on/at.

Turkish very often uses var (there is) and yok (there is not) for possession.

So instead of saying I didn’t have appetite with a special verb, Turkish says:

• iştahım yoktu = my appetite was not there

This is the standard and natural way to express I had no appetite.

Compare:

• Param var = I have money
• Param yok = I don’t have money
• Vaktim yoktu = I didn’t have time

Yoktu is the past form: there was not / wasn’t.

• yok = there is not / not present
• yoktu = there was not / was absent

Since the whole sentence is talking about a past situation, yoktu matches that time frame:

• iştahım da yoktu = I had no appetite either

Kahvaltıda means at breakfast / for breakfast / during breakfast depending on context.

It is:

• kahvaltı = breakfast
• -da = locative suffix, meaning in / at / on

So:

• kahvaltıda sadece çay içtim = At breakfast, I only drank tea / For breakfast, I only had tea

English chooses different prepositions here, but Turkish uses the locative naturally.

They look similar, but they are different things:

1. iştahım da

   • da is a separate word
   • means also / too

2. kahvaltıda

   • -da is attached to the noun
   • means in / at / on

A helpful clue is spelling:

• the additive da/de is written separately
• the locative -da/-de/-ta/-te is written attached to the noun

So:

• Ben de geldim = I came too
• Evde kaldım = I stayed at home

Sadece means only / just, and it usually comes right before the thing it limits.

• sadece çay içtim = I drank only tea

That means tea was the only thing consumed.

If you moved sadece, the emphasis could change. For example:

• Sadece çay içtim = I only drank tea
• Çayı sadece kahvaltıda içtim = I drank tea only at breakfast

So in your sentence, sadece directly limits çay.

Turkish normally puts the main finite verb at the end of the clause.

So:

• kahvaltıda sadece çay içtim
  • at breakfast
  • only tea
  • I drank

This verb-final order is one of the most important differences from English. Turkish word order is somewhat flexible, but ending with the verb is the default and most neutral pattern.

Yes, it is normal. Turkish often links related actions and states into one flowing sentence.

Here the structure is:

1. Sabah biraz mide bulantısı hissettim
2. bu yüzden iştahım da yoktu
3. ve kahvaltıda sadece çay içtim

This creates a clear chain:

• I felt nauseous
• so I had no appetite
• and as a result I only drank tea

This kind of connected sentence is very natural in Turkish, just as it is in English.

The sentence is mainly in the simple past tense:

• hissettim = I felt
• yoktu = there wasn’t / I didn’t have
• içtim = I drank

So the speaker is describing completed events or states in the past. Even though yoktu is not a regular verb form like hissettim or içtim, it still expresses past time.

Yes, you could. Midem bulandı is also very natural and often more direct.

• Midem bulandı = My stomach turned / I felt nauseous
• Mide bulantısı hissettim = I felt nausea

Both are correct, but they are slightly different in style:

• midem bulandı can feel a bit more vivid or physical
• mide bulantısı hissettim sounds a little more descriptive

A learner should understand both.

Yes, it sounds natural and clear. It is the kind of sentence someone might say when explaining why they did not eat much.

A very slightly more conversational version might be:

• Sabah biraz mide bulantısı hissettim, o yüzden iştahım da yoktu; kahvaltıda sadece çay içtim.

But the original sentence is already completely normal and correct.