Learn Hardcore Greek: Όταν έχω συνάχι και πονοκέφαλο μαζί, μένω σπίτι και ξεκουράζομαι. - When I have a cold and a headache together, I stay home and rest.

Breakdown of Όταν έχω συνάχι και πονοκέφαλο μαζί, μένω σπίτι και ξεκουράζομαι.

What does Όταν mean here?

Here Όταν means when or, more naturally in this kind of sentence, whenever.

So Όταν έχω... introduces a time clause:

In Greek, όταν is very common for this kind of repeated situation.

Why are έχω, μένω, and ξεκουράζομαι all in the present tense?

Because the sentence describes a usual/repeated action, not one specific event happening only once.

Greek often uses the present tense for habits or general truths:

So this is not necessarily I am sick right now. It means something like this is what I do in that situation.

Why is there no word for I in the sentence?