Headaches

I’ve been having a constant right sided headache for a couple of weeks now.

I have upcoming surgery and have been super stressed about that.

Haven’t had an appetite either and have got poor sleep.

Can a headache from stress or tension be always on the same side everyday? Or anxiety? The more Inthink about it the more it hurts but if i’m super distracted, it’s Ok. But if i stop to think about it; it’s like i make my head feel all of this crap.

I also have face numbness and ear pain on the same side. Already went to the ER but they didn’t do anything.