Hi. I'm also diagnosed with TOS more than a year ago and I had surgery on May 24 (as you read my post). I've been serching the internet for long time but can't find usufull information yet. Many doctors told us (maybe)the same thing over and over but I think that it's what they all got. Sitting at the desk is the hardest posture for me to do and my doctor told me not to do often and long hour. If your symptomes persist or get worse,surgery will be one of the choices for you,I think. And if possible, take x-ray like test for artery and nerves(sorry I don't know what it's called in English). My result showed severe entrapment of left artery and nerve. Anyway, don't work too hard for your own sake. Take care.