Very concerning periods. Please help

Last month I woke up at 4 AM and ran to the bathroom and started puking everywhere with really bad period Cramps. I got this really gross feeling in my throat that I was gonna throw up but I just wasn’t any more once I got it all out. Then I went back to bed but I noticed I was really dizzy and I was tossing and turning because I couldn’t get comfortable and I felt super sick like I was dying. Then I ran back to the bathroom 30 minutes later and started throwing up all over again I was sweating but I was really cold. I could barely breathe and I made the “huuuuh” sound every time I would breathe out. I went to the emergency room and my heart rate was extremely low that the doctors had to keep rushing in because the machines kept going off. The doctors decided to blame it on Weed because I smoke quite a bit. And I smoke dabs so of course my levels of THC will be high. But the doctor started asking me where I got my stuff from and she started interrogating me and she made the conclusion that since my levels of THC were very high that is what sent me to the ER when in fact this had never happened to me. Fast forward to this month, same thing happens but worse. My family was gone camping so I was home alone. And at 4 AM I woke up and noticed I had started my period and the whole thing just reoccurred. So I ended up calling my boyfriends mom because she is a nurse herself and knows what to do and she almost had to take me to the emergency room again. But I had convinced her I don’t want to deal with the bills. I remember going into my boyfriends house begging for ice cold water but they didn’t have any ice because their ice machine was broken. I had nothing but warn water and I felt so dehydrated. Has this ever happened to anybody on there period?