hi. i'm at a loss.

i've had a constant pressure headache for well over a month now. it's mostly on the left side but it radiates and sometimes hurts at the base of my skull. the pain can range from pounding to pressure to stabbing or to a feeling that somebody is 'pulling' a string from my head. 

on top of that, i feel pretty disconnected with the world. at first i thought it was vertigo but it seems to be more of a dissociation? it feels like i'm moving when i'm not and my eyes sometimes feel glazed over. i also have a pretty stiff neck and shoulders and semi regularly go to massages for it. 

i went to a neurologist recently after weeks of pain and he told me it's most likely that i'm just susceptible to headaches. every other doctor i've ever seen has said it's just anxiety and that i need to get out of my head. i'm just terrified of a brain tumor or increased intracranial pressure. but i asked the neurologist and he told me that it's crazy to think it's a brain tumor — he didn't even consider it, that's how outlandish he thought the idea was.

about seven weeks with very little relief and i'm starting to lose hope. i'm only 18 so my mom oversees all my medical stuff and she doesn't want me to get an mri because she doesn't think it's anything serious.

so i guess my question is... has anybody else dealt with something similar? can it really just be anxiety? how did you get rid of this feeling? im on a low dose of prozac right now but it hasn't helped. 

any advice or experience or insight is so so so much appreciated.