I'm sure it's pain from spasticity from the MS. My whole back is so stiff and all my muscles feel hard. I even feel with my hands where there's an indentation in between my lower 2 ribs on the right side. My left leg which is my weaker leg has been having increased spasticity lately too with cramps.

I did have an MRI of my whole spine a few years ago when this mid spine and back pain first started and my discs were all fine. The MRI did show mild degeneration of my cervical spine and thoracic spine. I just turned 40 in December, but feel like I'm 80 for a long time now. A manual did come with my TENS Unit showing how to use it. There was only one local place that supplied TENS Units here and it was $325. I saw them on amazon for $150 when I looked before I got my script. I wasn't sure if insurance would approve it, so I wanted to see how much they were if I had to pay the total cost.

Thank you all for telling me your experiences. I really appreciate it. I wouldn't know 1/4 of what I know about MS( even though I'm an LPN, but not working now due to MS) if it were say, years ago when we didn't have the internet. Feel free to keep your experiences coming and telling me what has helped your pain.