Hi, I'm a 24yo previously healthy and active male and I've been feeling quite bad recently. I woke up about 2 weeks ago with what felt like sever head pressure all round, a feeling of dizziness although nothing is spinning and a stiff feeling on the back of my neck.  Life seems to go in a bit of slow-motion around me when I turn my head. Since then, nothing has really changed (for better or worse) and I've been going about my days with these symptoms non-stop. I'm not too sure what to do about it, I saw my eye doctor some months ago and she was surprised to see that my pupils were slightly different in size. That came back to me recently and it's starting to freak me out, thinking it could be some brain tumor... Anyone had a similar experience? Thanks a lot, just talking about it and hearing you could ease my mind