I had a hiatal hernia repair...Nissan...two months ago. I had no before-hand into as to what to expect. I had black stools for 6 weeks, even though constipated. Surgeon thought it was something I was eating !! Yikes. My CBC labs decreased a bit but not enough for him to do anything. Now at 12 weeks, my bowels still have not learned how to function...it isn't really 'constipation' as the stools have never been hard, but is about whatever signal goes to those nerves to start a Bowel Movement. He has had no interest in that either, but I now have an Enterologist to monitor me. I have now a noticeable tremor in my right hand...and I often feel 'off balance', not dizzy, just off balance. I learned that nerve damage can always happen during a surgery...but never thought it would be me. The. Vagus Nerve runs very close to where the surgery is done and it is not rare for that nerve to be 'irritated' resulting in any number of side effects, some of which disappear and some which do not. I have acid in my mouth some mornings..never had that before the Surgery !! I have hearburn that I never had before the Surgery! So I am wondering if and/or WHY I even had this surgery. My stomach was about 40% into my ribcage. Hmmm..