Radiating pain is often caused by a pinched nerve or discogenic disease.... best to be checked. But.... that would be MY guess.... but I am NOT a doctor. Good luck.
It could be a heart problem, back problem or even a gallbladder attack- I had THE worst pain ever when I had a gallbladder attack- & it was in my back- it hurt to BREATH even, for 8 hours straight, only thing helped was kneeling on my bed with my arms like a pretzel on my pillow & my head resting on my arms- now i have to avoid fats- only eat fat free or under 5 grams fat per meal- or I'll have one of those attacks again & they are worse than childbirth- pain wise.
Then don't ever move again. I suspect it's a lower back pain.
Get to Doctor ASAP. Could be a number of things.
No idea but please see a doctor soon.