Hi Vron
I think that sleep apnea (sp) is where you stop breathing while you are asleep, it is common among overweight people (but if i am wrong i am sure someone will be along to correct me!)
The pain that i suffered after my keyhole op was all wind pain, and although it doesnt sound painful, it really is. The fill up your abdomen with gas so that there is more room to see and move about, but i am sure they just stitch you back up and let nature take its course without letting it out!!
Hope this helps hun xxx