Welcome, LindaZ!
I had RTKR on 08/22, so not too long before you. Tomorrow is 5 weeks for me. I've had some really DOWN days, days where I've said that there's no WAY I would ever, EVER do this again, feeling VERY sorry for myself, etc.
Just keep coming here and reading and posting when you need to. I promise you, there's nothing new here that these people haven't been through, and they have this amazing power to pull you through even the worst days!
I finally had a breakthrough yesterday, like RickB, and got those pedals to go all the way around. Today, I made it for 2.5 minutes fully pedaling! I feel like the little boy in Forrest Gump, who, as he runs faster and faster, the braces fall off his legs and he's finally running unencumbered. It's amazing!
Hang in there, girl. Take your pain medications, they are your friends. Do NOT be afraid of them or fear addiction. You'll be off of them before you know it, but for now, TAKE THEM. You cannot exercise if you are in pain. Make sure you are taking your stool softeners though or you'll seriously add to your misery and there's no reason to add THAT misery!
It's OKAY to post that you are having a rough time. Everyone here will help you cope and everyone here FULLY understands what you are going through!