Have any of you developed sleep apnea through all your treatment? My mom says within this last month she has noticed my Dad stops breathing at times during the night. She wonders if it's because his esophagus has shrunk from the radiation. It's not due to weight, because he lost about 50 pounds from treatment and she says she never noticed him doing this before the cancer showed up. Anyone else experience this? He is going to talk to his surgeon about stretching out his esophagus next week and the sleep apnea will also be brought up.