My surgery is also on the 19th.....I am also having bathroom issues...diarrhea. Started about five days into pre-op. It is bad too....I was shopping and did not make it too the bathroom. It is getting better today. So if I go out, I take a big purse with a change of clothing..not sure if this is normal. My labs are tomorrow and I meet with my surgeon so will ask about it. Hang in there..it will be worth it in the end!!!