Am not sure, do u get this on walking if so its a fibromyalgia symptoms. If not see yr dr

Mine used 2 feel like a heaviness. We get odd feelings with fibromyalgia , I find it sad so many people have got fibromyalgia .

I've experienced the same. Tightness with a heavy chest. It's very concerning. I just have to push through it.

It's horrible isn't it even sat up right in bed upper back against the headboard I can get tightness then or breathing feels tight anyone else get that ?

Yes its the fibromyalgia