My journey so far... I need answers help SOS

In the summer transferring from Highschool to college I believe which was 2015 I had everything great grades beautiful girlfriend in the best shape of my life and all great friends when tragedy struck. I was at the gym lifting weights the day after a party when I had a massive splitting headache in the back of my head. Almost to the point that I was knocked unconscious. I went home told my parents and they said it was nothing. Afterwards I started to notice it was some kind of headache that would increase when I would increase activity like going up stairs and such. I would feel very tired as well. And this headache would never go away. Me and my dad headed to the hospital and they offered to do a spinal tap to check for meningitis and I said no but they did ct scan and it came back normal. My concern here is does any one think I may have contracted a viral or bacterial meningitis and it went undetected ? Till this day I have been having psychological problems seeing therapist after therapist. Being confused and forgetting who I am not hanging out with friends just being over all alone and scared. Lots of anxiety about almost everything. Fears of schizophrenia and such. I just really need help before this turns into something worse. I just want to move on with my life. Help. Thank you much kindness to all