I had hiatal hernia repair with the Linx procedure for acid reflux and have been trying to find out more about this shoulder pain that is apparently associated with the phrenic nerve. I am one week post op and the shoulder pain is my number one concern. I thought it was related to gas and may well be, so I walked and walked which seemed to help some. The ONE thing that helped more than anything else was my sister would massage, rub, and pat the area below the dowagers hump. After reading some it appears the phrenic nerve is associated with C3, C4, and C5 which then made sense about her massage helping. Heat on the shoulder and across the back feels good and sometimes relieves the pain. Just wanted to share the massage in case it could give someone a little relief. For me I am more concerned at this point as to what is causing the pain and if it will be short lived or long term. I need to eat and drink for scar tissue maintenance ( swallow food once an hour )and health obviously but it makes me so bloated and then here comes the pain. Any feedback welcomed.