Yesss the pre-op diet is hard!! I have experienced the growling stomach but also I have been snappy with my husband and today I have a headache that I am thinking is caffeine withdrawal. I try to keep looking to the future realizing it will get better but sometimes that doesn't help much and my surgery is not until the 8th so I have a bit to go. It is nice to have others to share with because as loving and supportive as my husband, mom and friends are they have no idea how much I am struggling at times. Hang in there!!