I concur with PJ's suggestion to try some alternate forms of pain control.  Be very careful with those Tylenol.  Too many can cause kidney and liver damage.  I have long-term nerve damage from chemo in my hands and feet, and the pain from that can make it hard to sleep.  I haven't found any medication that helps the pain, but I have found medications that help me sleep.  My main go-to for sleeping is Benadryl or any over-the-counter antihistamine that does cause drowsiness.  Be sure to check with your doctor before you try even an over-the-counter medicine like Benadryl because there may be some reason why it would interfere with other problems you are having.  I hope you can soon find relief.  Long-term chronic pain can be very difficult to get under control, but there are techniques that can make it better.