I was doing yoga this afternoon and while I was doing a stretch I suddenly felt like I was going to faint, my limbs went tingly. The feeling went away once I lied down. I hadn't eaten yet so I went downstairs to have food and some sugar, but I've been feeling weak ever since. It's tiring to even sit up and type this on my computer. Feels like normal things suddenly take all my energy. I'm unsure what's going on or why it happened so suddenly. I'm trying not to worry, writing here and posting it should help alieviate some of my worries