Moved to a split level house. I treated the house like football practice. Stairs were hurdles. Going down stairs the ceiling was kind of low and I'd get clothes lined by it if I went down them too fast. I'd hit front of head on the ceiling and back of head on ground. Knocked myself out cold a couple times. Would have crazy bad headaches for a while. My pupils would be huge. Throw up all over. Still get dizzy to this day from them.