my son is 7 and last year he was admited to hos . with a iregula heart beat . of 180 bpm and was very ill . went blue like a death couler . and was sort of life less . well any way he got better the next day after they gave hime sum stuff to slow it down . then he had to have a 24 hour ecg done . well he had it on at school and when they read it after 24 hours there was sum abnormalties sorry my spelling is crap lol . but the ped said that if if keeps happing they will look in to it . and that was that . so any way i have had to tk him bk to the docs . as he has started to have dizzy spells a lot . also gets out of breath and has palptations . and says his heart burns any on know what this might be . also he has no strenth to do much .