I was taking a shower, and suddenly I felt very weak and I couldn t breathe. My vision went blurry and pretty much black, then I fell down. It happened twice in a row, the first time then after that I got up and continued my shower until it happened again. Today I ve only had a bowl of cereal to eat because I only woke up an hour ago. Could that be why? If not, could it have been a severe panic attack like I m known to have occasionally? Or something else? It was really scary, and it s happened before, plenty of times.