Worst cramps I've ever had

At 3 in the morning I thought I was just having a bad dream. I was whimpering and rolling over and over on each side. I finally woke up and my cramps were literally hurting me so bad. I started actually cry that's how bad they were. I put a tampon in and then I took it out Bc I needed to use the bathroom. I bled a lot in the moment and when I put the second tampon in, the applicator wasn't really bloody, it had clear wet spots. The second applicator had a lot of blood. Am I just having super bad cramps or is there more behind this?