Im a 21 year old male who is having serious problems with his brain. My symptoms are as follows: memory retention problems(have an extremely hard time learning and retaining new information,confusion,drowsiness,personality changes,my brain feels foggy and feels kinda like there is pressure,my senses arent acute, and have problem solving troubles and speech difficulties.. I've started feeling alot of these hardcore about 6 months ago. I want to join the airforce but I cant pass the asvab because I forget almost everything i learn and when I learn something and then am asked a question that is the same kind of question but a different variation such as a math problem its like there is no thoughts and no activity in the brain and its the same during interviews and i'm unable to secure employment by normal means only through temp services because of my speech troubles. I read,read and read about science,the human body, the brain,dna and genetics, so I should be a genious by now but I forget it all and feels like I didnt read anything. I've been to a couple docs and they keep telling me im too young too have atumor or its highly unlikely that I have one. I tried different meds for social anxiety and add but they dont help because all my problems stem from the memory,speech, and confusion symptoms. Im taking a math and science class at my local adult learning center because college is too expensive and im doing it to join the airforce and I started today and the science its life science and I couldnt remember anything I had to right it all down and I never had to do this before and never experienced these problems I was always bright. I feel like I lost my old self and I want him back. What could be wrong?