I have had left shoulder pain since surgery that is worse when coughing/doing the breathing activities or sneezing or trying to sleep. It has been my biggest complaint post op! In the hospital I was told it was gas, which made sense. At my one week check-up, there was a bruise on my left shoulder. I thought I bruised myself from trying to press it, hold it. My surgeon thinks a bar was against my shoulder in surgery that caused the bruise. He isn't concerned but said that I'm the first patient he has seen with a bruised left shoulder post-op. I'm now two weeks post-op and it still hurts but not as bad, the bruising has gone away and otherwise I feel great.