Do get one of those donut pillows like she suggested. They are really weird but they help with the pain. Keep a lot of fiber in your diet. Constipation is a normal condition in pregnancy, but you can drink prune juice and as much as you want to help it along.
Don't worry about what the doc's see or think: they've seen everything. I know it's embarrassing no matter what to you (I can never get over just having my legs bared when I have a baby, let a lone being stripped naked and having my clothes cut off me once either), but they really don't care. They see a patient who needs help and they wouldn't have become doctors or stayed doctors if they cared about stuff like that.
If you get another tear or episiotomy, get one of those tubs of TUX and use them every time you use the bathroom. They will help the site to heal faster, minimize the possibility of tearing, and keep you infection free.