Mav,
Quite the predicamant-offers of sex from every angle, and ya just don't feel up for it. On one hand, the idea of having sex gets your mind off that @#@$@ pain for awhile, but the actual thought is far more productive than the act itself in this case.
My husband is going through the same thing right now. He had to have laser surgery and litho for his (his ureter was blocked by a 7mm stone). It's been two weeks and he's still in major pain (has to stay off meds when he goes to work, but comes home, takes his meds, and goes straight to bed). And he still has one more side to go-ugh!
If your lady friends have had kids, you could ask them if they wanted to have sex when they were in labor. That just might help them understand what it feels like.