Irritable Uterus

Has anyone else discovered they have an irritable uterus? Didn't have it with my first but I have it this time. The contractions mimic Braxton Hicks and they're near constant. Pretty much everything sets them off. I'm currently on Procardia and P17 shots for it. I've been admitted once already and monitored 2 other times because of it. I've seen a lot of posts about BH but none about irritable uterus.