I took 11 caffeine pills once in a single evening (don't ask) and ended with my heart playing drum n'bass breakbeats for about 24 hours. Fruit juice and lying propped up on my right side was my treatment, mainly because I was too embarrassed to mention it to anyone. It hasn't happened since - mainly because I've not had such a major attack of the stupids ever again. I hope yours has a similarly innocent, and solvable, cause.