Not diagnosed yet - weird episodes happening, anyone else? Does it match?

Every month during ovulation I usually get diarrhea, bad cramps, just overall not feeling well. I get really bad canker sores.

Also a couple days before my period same thing but I also will have an episode similar to a panic attack. It happens within seconds. Where I get tunnel vision SO suddenly, cold sweats, like I'm going to vomit or poop. Then my body cramps up like I can't move my hands or anything.

Does anyone else experience these episodes?