Suggest Treatment For Pain In Shoulders

Hi, I'm a 58 year old woman, 5' tall and weigh 122 pounds and am in good health except that I have trigeminal neuralgia and fibromyalgia. I also have constant pain due to having my shoulder "rebuilt," ( a SLAPII injury and torn rotator cuff) which is a trigger that makes the TN worse. I take 300 mg 3/day of gabapentin for nerve pain, have had three brain surgeries in the last 8 years, one being an microvascular decompression, open brain surgery that showed my trigeminal nerve had a vein growing through it. Instead of being the size of a pencil and white (normal), the nerve was almost severed by a vein that had grown through it. In my neurosurgeon's words, the nerve looked like a thin piece of purple ribbon. I am now taking 100 mg of Nucynta for pain, but it doesn't seem to help much. I was previously on Norco three times per day and have a high tolerance for pain meds. Several years ago I took 80 mg Oxycontin per day, but weaned myself off because of side effects; I was vomiting several times a week and the drug just made me feel rotten. I ran out of Nucynta yesterday, but had no withdrawal symptoms at all. Does this mean that I'm now tolerant to Nucynta? I hate to bump up the mgs. because I don't want to become physically addicted. Luckily, I don't have an addictive personality, but this dosage of Nucynta is not taking care of the pain. My shoulder hurts every day, sometimes to the point where it feels like there's a hot knife in my shoulder blade area. Should I visit with my pain doctor to see if I need to up the dosage? I don't want him to think I'm just trying to obtain a higher dosage just to get high. Are there any other pain meds that might work, and am I justified in telling them the Nucynta isn't touching the chronic pain? My husband is an MD who has been a family practitioner since 1977 who monitors my drug usage, bless him. He thinks I've built up a tolerance, but I don't want to appear as a drug-seeking "druggie," and am well aware of those people due to my husband's dealing with patients on narcotics. He always goes to my pain doctor with me. I'm just wondering what my options might be. Thank you very much for reading this long message. I felt that I should let you know about my medical history.