I had a SIS, which from everything I've read is more painful then an HSG. The meds (painkillers) they gave me were worse then the test tho- I felt horrid for a week. I wish I'd just used motrin or tylonol. Those will both be fine for you to use.
I would bring someone with to drive you. If you can bring DH, b/c if there is anything wrong you can discuss it right there, and it's nice to have someone to hold your hand. I would not have driven myself, but I'm an hour away, on the interstate from my DR.
Bring a full bottom pair of panties and very loose pants or a dress would be even better. You'll probably have lots of bloating and possibly fluid retention. The full panties are for the pad you'll need to wear home. if your DR's office doesn'ty have good ones you'll want to bring your own, super absorbant ones.
I had a fair amount of pain, but it was bearable. You're going to do great!
I hope everything is perfect!!!! Godd luck!!!
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Cheryl, mama to Noah Paul born 12/26/09, wife to wonderful hubby Rob
I am proudly a homebirthing, excluively breastfeeding from the tap, constantly babywearing, bed sharing, attached mama to a high needs baby. He is a part time diaper-free baby!