Ugh I'm so sorry. I so relate to the woes of not sleeping, while on your back....so I can imagine your frustration being able to finally side sleep but then have back pain from it. It's a no-win situation!!!! I'm not sure what to suggest....maybe a pillow behind your back when on your side as more support? I still am in such awe of you and your double hr. I just can't even fathom it. Big hugs!!!!