Idk if this has to do with my period but...

So i’m on my period and i was taking a hot shower when i started to get an extremely strange feeling and it was like i could barely breathe and my heart was racing. I also had a strange feeling in my lower gut which felt like i had eaten too much but i know it’s not that cause i didn’t eat much today. I immediately had to get out of the shower and my heart is still racing even though i got out 10 minutes ago. Does this happen to anyone else when they are on their period? It had never happened to me before.