Oh no garwha! Going so much must be painful! I'm sorry that I don't have any useful advice to offer, since I haven't had the surgery. But I wonder is it possible that you are taking too much stool softener? I sometimes find that on days when the burning/spasms are bad, I will have multiple BMs and the feeling like I'm not done and I have wondered if the reason I is because my butt won't let me do it all at once.
I'm going to stop speculating now and let the knowledgable people contribute. For now I'll just offer my sympathy
