You have lots of support here and ucRick makes a lot of sense, his story is nearly the same as ours so
must be "normal" for this surgery. if you are prescribed Loperamide / Immodium, do try to take the lower dose if you can as it can dry you out and help in causing blockages. Drink plenty, whatever goes out, put back in to stay hydrated. The very best of luck, I hope it is a complete success.