Thanks, Dave. Actually, I didn't know all these possible causes of pain. I am pretty sure it is referred pain from some digestive organ, because it is a sharp, sharp nerve pain that has radiated out and is affecting the whole shoulder and neck area now. I called my doctor, who, of course, isn't in today. The urgent care doctor seemed to think it was muscle spasm, but his exam was cursory and he spoke little English so our communication was difficult. Unfortunately, I have to go into work today to see my class and I go back to work Tuesday. My doctor's office told me to go ahead and take Vicodan along with the motrin, but say, compared to the pain after back surgery, this is not responding too well to pain meds. So, just keep me in prayers, I doubt that it is serious, probably a pinched nerve where the mid rib and spine meet, but it sure as heck hurts.
Liz