Sorry you are going through that with your back. I am fused C3-7. I don't usually recommend any kind of medication, but there are those that do not give you side effects at all. No light head, or sleepy feelings. I take MS Contin, and have for many years. I have not needed to up the medicaton, and it works most of all. I was increased gradually until some relief was found. I hope you ask your doctor about this medication as a possible alternative for you. Tylenol, does have liver problems assiciated with it. I have stomach issues, and this medication has not hurt me. Please let us know how you do. You have been through alot, and I wish your surgeries had turned out better. ginnie