Hi my doc too wants me tested for sleep apnea. I'm thin though so I don't think there is always a connection with weight but may be wrong. For me though I don't think that is the breathing but anxiety but could be wrong. I think some of the connection is because when you don't get a good night sleep there is a thought it can effect your pain level.I know I often feel drained from lack of sleep.Thanks too for your thoughts. I live now in southern ca from Mi. I have seem many and I mean many docs here in Ca,Mi,Oh,and a phone consult with a doc in Fl my gramps sees.