I didn't see any place where this could really go and this forum seemed to be the closest possible match from some of the reading I've done today. I'm in my late 30's so I don't know if this is premenopausal or not. I still have a very regular period and it typically is light and lasts only for a two-three days. Now, I knew my period was coming up real soon since it usually falls on the full moon. This last saturday before the full moon, I had started to feel extremely lightheaded and shaky. Usually when this happens it's because I need to eat. I felt much better about an hour after. The next day it happened again, so I ate. However, on monday even after eating, I felt lightheaded off and on all day. Walking around seemed to help. It felt even worse on tuesday, the first day of my period, even after eating. I got a little exercise but it persisted so that I had to lay down. My heart was faster then normal too, but that might have been because it was making me feel anxious by that time. I also felt slightly nauseous. Each time I had these bouts of lightheadedness I concentrated on taking deep, slow breaths and sometimes did my anti-anxiety visual. That mostly just helped me mentally.
The only thing I'm taking at the moment is calcium and today I started taking potassium again because I have low counts in these areas and had real bad attacks a year ago. I read that blackouts can sometimes happen during a period because of low iron content, but this happened before I started to bleed. So I am wondering if I may be starting to go premenopause, or am deficient in something else. I have no insurance since I got laid off so I thought this would be a good place to start and try to get some idea of what might be going on.