I have this twitching on the back part of my head, right side to be precise and it's bothering me. I also had severe headaches and got used to taking pain reliever just to make the pain go away. I am kinda worried about my eyes too. i thought that it was just my eyes but something's off and I never felt this severe pain. Sometimes I'm having health issues and it takes a week before I get better and also worried when I'm almost blacking out. I am also anemic according to my previous doctor and it's been years since I have taken a check-up and now I feel worried. Is it possible that it's just my eyes or something I should really go and seek medical attention?