Since I haven't been having obsessive thoughts about my breathing and chest, i'm now worrying about how I feel. I had my first period in 115 days last week. I know its TMI for the guys but I'm explaining this as I believe its contributing to what I have been feeling. I have been getting more sleep the past few nights. I ate a lot yesterday and had this weird head rush feeling which made me feel like I would pass out in bed... Today I could only walk a mile because I felt like I would faint. I have never fainted and the doctors have not found anything medically wrong. I am guessing my migraines could be causing this. Ive been having head pain since Saturday and I still feel off. Any advice or feedback is wonderful.