It was my experience as what used to be in very decent shape(infantry then college crew) then about 7 years off but ran a tri or two. That the PEG was very painful for the first week and a half+. The doctors told me that my there was a lot of muscle still on my abdominal wall and it was gonna make it more painful compared to someone who was relatively less active.
The Mediport feels like you shot a 10gage magnum round and didn't seat the stock properly in your shoulder, that feeling that you would normally feel for about 4-5 min last about a week. But they give you vicodine
I did my two surgerys back to back and it was not a very fun week. But two weeks out I feel mostly normal. I would suggest that you figure out a position for your peg tube and keep it bound up with some ace bandage for the first two-4 days.