Hi there,,,, I know that alot of us feeling as you are rite now. Is not fun dealing with the issues of RSD. Not at all.  sleeplessness I thinking is the worst for all of us. Is not ease. I know that the neausea n pain is all going together as well.  ALL OF IT,,, even the meds. Not fun period.  But weight loss is hardest on our ammune systems ,,  much harder. I am going thru this as well. Make sure that what u do eat is healthy.  I got so tired of eating soups n puddings that I felt like soup n pudding. Am still on steady deit of.  I am constantly looking for any way possible too keep my mind busy n going since sleep is  avading n not to be had. Finaly is coming too where I have sensations of nitemares. creepy ones at that I hate that part.  Hate it with a passion. Makes one so angry that something can be such a horrid monster.  I do suggest also finding anything heat or cool or someway of finding comfort in a position too relax in.  Learn ways of relaxing.  Is a biggg must.  And a biggggg must for body too function n mind too stay functioning. I had become too state of near total shuttdown. That I refuse too let happen.     So hoping that u r able too find ways to do this.  Hoping that you try puddings  yogart soups anything that is healthy  puddings  ice cream n yogart really helps with tummy upset in soothing.   Tho  neausea is there  not stop. not fun.  Not fun at all.  Hoping is getting better.   Huggzzzzzzz