pre-op diet

So i've been on my pre-op diet since 8/31. The first 2 days was the worse, i had headaches really badly. Now my stomach hurts.. i been drinking protein shakes about 32oz a day with skim milk, 64 ozs of water either with or withou****er enchancer,,, and i will either have tuna or an eggs for dinner. I am suppose to have another protein shake but i can't get it down because of the stomah pain.Any Opinions/thoughts on what is wrong now? I am sorry but this is becoming a nusiance, and i haven't had a bowel movement in a week. TMI....I am sure i may have to go...

Hi, It could be the type of protein mix that your using. I didn't have to do a pre-opt diet perse but I found myself drinking protein shakes just to see if I like them. I started out with IBS so the drinks wasn't as nice to my system and I felt the same way. You may want to try using soy milk instead because its easier on the system. I also found that Isopure protein mix (gnc) was a lot nicer to the system as well. I hope this helps.

It's probably the protein. Muscle milk did that to me. And you probably need to get something for the constipation