Have to admit that I laughed at the title too!!!
Agree with Cricket that some new positions are handy - this might sound weird, but if you use a BIG stack of pillows under you chest and hips, that makes rear entry a litle more comfortable and makes you feel a little more supported. Also -This might be a bit too personal, but maybe you could do all the non-penetrative sex stuff... um, ahem, like oral...
I don't think you'd have to get in an uncomfortable position for that and your DH could return the favour without aggrevating your condition I think?
Anyway, just some suggestions.
Good luck,
Lily