I just started my trial on may 23, 2013 and I have had the worst back pain! I couldn't get out of bed for 2 days and I can barely get out of bed now. I am in so much pain, I am wondering if anyone else had a hard time recovering from getting their trial? The stimulation seems to make things worse. I think my leg is too sensitive for the buzzing sensation. I have CRPS in my left ankle/leg. I am trying to tough it out to see if I get used to it, but I just want it out! I want this to work so bad, but I don't think it is going to.