It feels like my chest muscles and back muscles get really weak, its a scary feeling. I don't have so much pain when this happens just weakness. I believe its muscle because I sometimes get what feels like muscle spasms they only last about 10-15 seconds but are sharp throbbing pains. I tried walking everyday this week and once again this is when weakness set in. Thanks for any info!
Im sorry I didnt mention that I was diagnosd with fibro 3 years ago
I would see a doc also and get tested for FM. Most people with FM suffer all over their body's.
There are trigger points on the body that a doc can press on to see if you have FM.
My lower back is the worst but I carry a lot of pain in my upper back also.
Between my shoulder blades is the worst.
Let us know what you find out.