Hey Travis - I'm so happy you're feeling better.
Antibiotics can be really vile, but it's great that the cramping is mostly gone. Butt pain and surgery are really exhausting, so it's not surprising that your body wants to sleep a lot - that's even a good thing too, because sleep, and even just rest, really helps the healing process. The anxiety levels will go down, sooner than you think, once you start to trust your body again. It sounds like you are making really great progress, so when the anxiety creeps up on you, remind yourself that you are healing and doing really well.
Take good care of yourself and rest as much as you need to. :)