I was put on Effexor XR for migraines. Took it 6 months. Tapered off for 3 weeks as recommended. Immediately began having electric shock sensations, buzzing in my head/ears, and insomnia. Two months later I still have parathesia (tingling in face and body) constantly. I had an MRI that didn\'t reveal a deeper problem. This is dangerous stuff. Why didn\'t my neurologist warn me? I hope I\'m not permanently screwed up. How are you doing now?