IUI & OHSS?

We just did our first IUI on Saturday with clomid on CD4-8. My doctor never warned me of post-IUI pain but I have pretty severe ovarian pain / pressure, kidney pain, shortness of breath. I read this is less likely with those who only took oral stimulants but man, it's horrible. My doc is closed tomorrow (Monday) for MLK Day, and I really don't want to go to prompt care. Has anyone experienced ovarian hyperstimulation syndrome after IUI with clomid? how long did your symptoms last?