Hey guys this is my 2nd post. I am concerned now because I had a concussion about 6 months ago now. My symptoms still are not getting better. I have:

confusion
insomnia
nausea
severe headaches
body aches
seeing stars/bright lights
loss in appetite
fatigue
dizziness
trouble focusing/concentrating

I am currently seeing a neurologist. He put me on Topamax, Amtryptiline, Nortryptiline, and now I am on Celexa. And none of these medications are working for me. I am waiting to do an EEG and then see what he see's next. It also seems like no medication is working on me. The neurologist told me that my pain might be psychological at this point. I do not understand this. Is this possible?