Yesterday something strange happened, it was in the evening around 6-7 o'clock when I felt really weird I felt really hot on the inside but I was cold on the outside, my head went really fuzzy, I went quite dizzy, nearly collapsed, I wasn't able to stand up because I was worried I would collapse and the really weird thing was my heart went funny it was beating really slow and felt like it was going to stop . Anyway after that happened the effects of it today has left me with feeling quite dizzy and my head is still slightly fuzzy. Anyone else had this happen?? and what could it be??