Anyone have a hysterosonogram and your experience?

Heather • so blessed to have my 2 beautiful children!
I'm scheduled for a hysterosonogram in 2 weeks to see if I have any polyps or fibroid since my periods are out of whack.. I'm nervous they put saline in your uterus and said ill,have mild cramping and it's an hour! I'm really nervous anyone have this and what was it like?