Unusual period cramps please help!

Megan

So I’m supposed to start my period in 2 days. This morning I woke up and saw I little bit of blood when I wiped so I was saddened to see that I got yet another period. (Me and my boyfriend have been trying to conceive for 9 months) I am very small weighing about 110 and my periods usually last four days and are always really light. I’ve never had bad cramps either. But when my period stated today the cramps started getting worse and worse until I was walking to my closet to change and all of a sudden I felt a bunch of blood come out and it came through my shorts and started running down my leg it was so much blood. So I ran to my bathroom and sat on the toilet and that’s when I started feeling extremely hot and started sweating I thought I was going to pass out. I also felt so nauseous. Then I stared throwing up and my stomach cramps were so bad I couldn’t move I was just screaming. Eventually I was able to walk to my bed and lay down and I laid there in immense pain until I fell asleep. I just woke up and I feel fine now. Has anyone experienced this before and knows what happened?????