Po chorobie już nie mam gorączki.

Chorobie is the locative singular of choroba (illness, disease).

It appears in the locative because the preposition po takes the locative when it means after:

• po chorobie = after the illness / after being ill
• po pracy = after work
• po obiedzie = after lunch

So this is a very common pattern:

• po + locative

Here po chorobie means after the illness, or more naturally in English, after being sick / once I recovered from the illness.

It usually refers to the period following an illness, not necessarily a very formal medical disease. In everyday speech, choroba can simply mean being ill.

So:

• Po chorobie już nie mam gorączki = After the illness, I no longer have a fever

Yes. Polish uses the verb mieć (to have) with gorączka just like English does with fever.

• mam gorączkę = I have a fever
• nie mam gorączki = I don’t have a fever

This is the normal and natural way to say it in Polish.

This is one of the most important grammar points in the sentence.

In an affirmative sentence, you would say:

• Mam gorączkę. = I have a fever.

Here gorączkę is accusative singular.

But after negation, Polish often changes the direct object to the genitive:

• Nie mam gorączki. = I don’t have a fever.

So:

• mam gorączkę → accusative
• nie mam gorączki → genitive

This is especially common with mieć in negative sentences.

Yes, exactly.

The sentence uses the genitive of negation, where a noun that would normally be in the accusative changes to the genitive after nie.

Compare:

• Mam książkę. = I have a book.
• Nie mam książki. = I don’t have a book.

And here:

• Mam gorączkę.
• Nie mam gorączki.

This is a very common feature of Polish, and learners meet it early on.

Here już means already or, more naturally in this negative sentence, no longer / anymore.

So:

• już nie mam gorączki = I no longer have a fever
• literally: already not have fever

In Polish, już often combines with nie to express that something used to be true but is not true now.

For example:

• Już nie mieszkam w Warszawie. = I no longer live in Warsaw.
• Już nie pada. = It’s not raining anymore.

In Polish, subject pronouns are often omitted because the verb ending already shows the person.

• mam = I have

So ja is not necessary.

You can say:

• Ja już nie mam gorączki

but that adds emphasis, for example:

• I no longer have a fever

In neutral everyday Polish, leaving out ja is more natural.

Polish word order is fairly flexible, but different orders change the emphasis.

The given sentence:

• Po chorobie już nie mam gorączki.

puts the time/context first: after the illness.

You could also hear:

• Już nie mam gorączki po chorobie.
• Nie mam już gorączki po chorobie.

But the original sounds natural and clear.

A useful thing to remember is that już nie often stays together because it expresses the idea of no longer.

Yes. Both are possible:

• już nie mam gorączki
• nie mam już gorączki

Both mean roughly I no longer have a fever.

The difference is mostly one of rhythm and emphasis, not basic meaning. In many contexts they are interchangeable.

That said, już nie mam is especially common when emphasizing the change of state: before I had a fever, now I do not.

In everyday Polish, gorączka usually means fever in the medical sense.

So:

• mam gorączkę = I have a fever

If you want to speak more specifically about body temperature, Polish can also use:

• temperatura = temperature
• podwyższona temperatura = raised temperature

But in normal conversation about being sick, gorączka is the most natural word here.

It can do both, depending on context.

In everyday speech, choroba often just means illness or being sick:

• Po chorobie jestem jeszcze słaby. = I’m still weak after being sick.

In more formal or medical contexts, it can also mean disease.

So in this sentence, a native speaker would usually understand it in the ordinary everyday sense: after the illness / after being sick.

Grammatically, it is possible, but it sounds less natural.

Polish usually prefers the simpler:

• po chorobie

rather than a heavier structure like:

• po byciu chorym = after being ill

So for normal speech, Po chorobie już nie mam gorączki is much better.

Yes. The verb mam is present tense:

• mam = I have
• nie mam = I do not have

So the sentence describes the speaker’s current state:

• After the illness, I no longer have a fever now.

The phrase po chorobie gives the background, and już nie mam tells you the present result.

Yes, you can.

• Po chorobie nie mam gorączki. = After the illness, I don’t have a fever.
• Po chorobie już nie mam gorączki. = After the illness, I no longer have a fever.

Adding już makes the sense of change clearer: before, I had a fever; now I don’t.

Without już, the sentence is still correct, but it sounds a little less explicitly contrastive.