What Causes Difficulty Breathing And Chest Tightness?

hi. i am having difficulty breathing, my chest is tightening up, and each time it does, it gets worse. also, my back is super tight and i am unable to bend my spine. it is all warm and tender to the touch. even by walking, i have a hard time getting oxygen. i feel like i have a collapsed lung. when i lose my breathe, it takes me about 2-3 hours to get it back, even though it never comes back fully. why is this? are these symptoms related? if so, what is causing them? if not, what are the different things causing them? Thank you, Kaysie Reitmeier