It could be Danielle. I'm not sure what is fibro and what is costo anymore, I have had a sore place on my sternum for going on two years that never goes away, probably costo. But even if I lift something that is a little too heavy my ribs will get sore, you don't think about what muscles affect what til you have fibro. Clear around me where bra goes stays sore and has been for a long time so I don't wear a bra unless I have to and than I buy them big so they really aren't squeezing me. Sometimes it feels like I have a tight bra on and I haven't even wore one for days. Oh, and under my arm pits,where the bra goes, I have sore spots that if anyone touched I would probably scream that never go away.
Referred pain is very real, where you can push one place and have pain another, that is from the fascia being connected clear through our bodies. I have a place on my neck that when pushed causes lower back pain, how crazy is that???
I have had many broken ribs which doesn't help either cause old breaks tend to hurt when the weather changes etc.
I can't take nsaids so it doesn't matter for me if it is inflamed or not.
Our weather is crazy today with rain, thunderstorms and 3-5 inches of snow in the forecast by morning so there isn't a place on my body that is not screaming.
Get better.
luv and hugs
Marlee