I'm so sorry to hear you are back in the hospital. You are certainly having a rough time, and have the right to vent! No one understands it like we do, that's for sure.
I know what you mean about sleep and aches. I swear they abused my pacemaker while I was on the table, so not only do I have the neck back shoulder and etc. aches, when I lie down on my back the pacer seems to slide against internal bruises and hurts as much as any other nasty pain. I alternate naps on the couch with sleeping in bed. I spend all day in the recliner, and my husband asked me not to sleep there if I can avoid it.
I hope they find out what's causing your problems and fix it quickly.