⚠️Emetophobia warning⚠️

I was 10 days late which is not normal for me at all, and then finally started spotting. (I am not sexually active, no chance of pregnancy) yesterday, I woke up with the most severe period cramps I've had in my life, I ended up having multiple panic attacks and then throwing up 4 times. After I threw up the fourth time, I immediately felt better. Well, same thing just happened this morning. Wake up, severe pain, cry, panic, throw up 2 times, some time goes by, throw up again twice, immediately feel better. My flow is also really heavy, usually on the rare occasions my period is late I do get more severe symptoms, but this has never happened before. It doesn't help that I have a phobia of throwing up so I'm kind of a wreck. I don't know what to do, has this happened to anyone else? What did you do?