HI @Soulaimane, I'm sorry you're having headaches and irritability. Have you tried using either heat or ice for your headaches? I personally find using a heating pad really helps. And I can relate to feeling irritable. It's hard when everything and everyone seems to grate on your nerves!
When you get a chance, can you add a Signature to your profile? Click on Settings, which is on the left side of the screen under your profile picture. Then scroll down to where it says Add A Drug Signature. Please add the name of your drug and what dose you're on. It will need to be updated once your dose amount changes. When did you make a dose reduction? And by how much did you reduce? Are you working with a knowledgable provider?
Rest assured that what you're experiencing is only temporary.