I can relate. I'm into my 4th day now and haven't had a decent nights sleep since my last binge. I'm restless and my thoughts tend to race. I am feeling a lot of guilt and shame over my last relapse and that's part of it. Lots of stress going on besides that too. I'm trying to forgive myself and move on with my recovery. That and deep breathing exercises work great too when my thoughts get overwhelming.
Hang in there. I've been through this several times (unfortunatly) and know it does get better soon. Take care!