I don't really know if it is but last Friday it was reaLLY hot and my eyes suddenly involuntarily shut and opened then I felt really weak and felt like vommitting. I couldn't even take off the suit is as wearing and the jacket. I had difficulty walking so I sat down and when I looked uo, my vision turned all colourful and bright. My face was very pale. I was told it was because I didn't eat in the morning and someone else told me it was a stroke. It all happened in the morning.