Hi angel and welcome to the board,
i also had triple bypass just a little before you did. I found I have some problems with my back as well. You need to talk to your doc about this one.The burning could be from a pinched nerve in your neck or middle back. I had to have fusion surgery for my neck c6-c7. I have ddd really bad in the cervical and thoracic regions of my back. I have several buldging disks and another herniation at t8-t9. I'm taking methadone for the pain and neurotin for the burning nerve pain. Check with your doc about getting an mri of your back.
Good luck, bruce

i had a burning sensation in the upper left side of my back since 4 months..i went to 3 doctors but they ddnt know why. The pain is constant and it increases with the way of sitting or standing..i hope i can fine an answer here..thanx

i am also having the same pain. google sharp burning upper back pain. click This link has been removed/ forums/back-problems-support/messages. we are not the only ones with this pain. hope this helps

I also having the same burning sensation in my back around bra lining area, I went to chiropractor, it works, they know what to do!