Hi Ralph,
Welcome!
I like this MS site, link is below. Some stuff is old but still valuable information. I get the MS Hug everyday. I think they named it because it feels like a big old bear came up behind you, and squeezes you around the upper middle, then lets go and does it again and again.
Sometimes it is non-stop at night for me. It is painful, like your ribs are being crushed. That's how it is for me.
Other people get it around the waist, a leg or even an arm. That feel like a tight band is wrapped around the area. They call it banding, girdling (like a tight elastic band) or The HUG.

Not a pleasant pain to have, but it is invisible pain to the doctor, only you feel it.
This link is to:
Invisible Symptoms: Fatigue and Pain
http://www.mult-sclerosis.org/news/J...eSymptoms.html
Copied from the site.
MS HUG
Band-like pain in torso or extremities (Jeffery, 2000)
Caused by a lesion in the spinal cord, this pain is characterized by intense pressure or squeezing in a girdle-like pattern around the torso.
May respond partially to phenytoin or gabapentin.
For resistant cases, benzodiazepines may be helpful.
I hope you don't have MS, but if you do, there are medications for a lot of the symptoms.