I've had pressure/low pain in head for 3 months. Feels like it will explode. Also at one year mark for post herpetic neuralgia from shingles. Neurontin, Lyrica, various pain meds, cortisone shots in back....nothing helps. Internist/neurologist/pain mgmt. specialist/ physical therapy....nothing helps. Now have intermittent burning, stabbing pains in back, side, legs. I also have rheumatoid arthritis. I don't know which way to turn!