... tests upon tests and they believe this is due to "stress". The pain is dull and it constant. It is right behind my ear and is worst when I don't sleep much. I don't know what to do and I'm really had enough of this headache. What should I do? Now, my left eyelid is starting to droop. So I have slight ptosis. I've found all my complications to be on my left side. I'm 17 years old, wear high prescription glasses. Someone help me please