I don't have RSD in my back area or have the heating pads as the heat doesn't seem to help me that much really but I have seen some heating "wraps" advertised on the television over here in the UK that you can get from most grocery stores. They are called Thermacare Heat Wraps and are self heating and can provide relief for up to 8 hours. They are quite cheap also - they are only a few £'s over here and I believe that you can wear them in any position whether you are sitting down or laying as they fasten around your waist so they are nice and secure.

Here is a link to them - i'm not sure if they have them over in the US but it might be something to look into if you haven't already:

http://www.superliving.co.uk/pharmac...heatwraps.html

(Mods, I hope I am OK to post the link - if not, please remove it. Thanks!)

I'm so sorry to hear that you are having to deal with all of this on top of everything else! I really hope that you start feeling better soon and you are in my thoughts and prayers. If you ever need anyone to talk to, please know that I am here for you because I DO understand how scary and frustrating it is having to deal with spreading!!

Take care of yourself and please keep us updated when you can!