I thought CPM was from prolonged hyponatremia? What would be the iatrogenic part?

Thanks for your thoughts Vanessa. I really wonder what the real rat of e occurance is

I am so very sorry about your friends!   I can't agree more about going to the hospital when there is any abdominal pain.   I have had five (5) obstructions.  I was also once in ICU and am fortunate to be alive.  The first obstruction took over 7 months to diagnose and one bariatric surgeon that agreed to see me in my new home city failed to diagnose me insisting that there was nothing wrong with me.  If it weren't for the compassion and listening skills of my WLS, I'd certainly be dead as not just the first but three others were found exploratory and did not show on ANY scans, XRays, blood testing, etc.   Abdominal pain is the most difficult "illness / disease" to diagnose.  As a WLS patient, one should be especially aware as time can be critical.  Know your body.  Know it well.  Press forward if you're being dismissed.  My own advocacy saved my life.  

The ultrasound showed my gall bladder was OK.  Also the ED doctor didn't think from my symptoms that it was gallbladder.

Yesterday, I had some pretty severe abdominal pain, mostly high in my abdomen under my sternum and above my naval.  I went to the ER when it did not subside after about 5 hrs.  The ED doc did some labs, and an ultrasound.  Gave me iv Fentanyl for pain, which didn't really help. The tests did not show anything, but the ER doc was suspicious of an ulcer and gave me a prescription for Nexium.  Before I left the ER, about  8 hrs after it had started, my pain and tenderness was almost completely gone.  So I tried to eat a bit when I got home because I had to know if I was gonna be OK to go to work today.  The pain returned, although was much less severe. I did call in sick for the day though just to see if it would get any worse/better.  (I am a nurse and work 12 hr shifts and there is no way I could have worked with that pain).  When I get to searching on line about what might be the problem, 2 things come up: ulcers and internal hernia (Petersen's hernia).  I had one other episode of pain like this 6-8 wks ago.  No nausea with it, just a sharp, colicky pain that was worse even with a swallow of water.  It started after eating a few bites for lunch.   In between episodes I have had maybe some smaller episodes that have resolved inabout 2 hrs with less intense pain.  So who can tell me about ulcers and internal hernia symptoms/pain? BTW, I don't drink, smoke and less than a cup of coffee a day in caffeine.