Why does pain cause one to feel dizzy?

Question

for example, when I got bad diarrhea or period cramps, I start feeling lightheaded and like im going to faint. It also clogs my ability to think and I have to take a while to recall certain things

In: 37

Answer 1

My foot was run over and I passed out. I passed out during my first tattoo, and I tore my leg and saw the fat layer and passed out. I kind of like this, because I’m not there for the pain. The tattoo one was embarrassing, though. I got over that. I also have very low blood pressure regularly. That may have something to do with it.