I'm experiencing horrible upper back pain. tylenol extra strength didn't work. I took it almost 6 hours ago. I've tried different sitting, standing, and laying positions with pillows, and hot and cold packs. nothing is helping. I've been in the hospital the past two days for different types of pain and don't really want to go back. should I? I had an MRI and they said my abdomen and lower back look fine. (no appendicitis, because I had bad pain on my right side)