Im a 21 year old male, not very athletic, used to be, don't eat very healthy. Have had lower back problems since high school on and off. Been having trouble breathung latley, when I breathe sometimes through my mouth theres like a flapping or ratteling that comes from the back or my throat that I can't really control. I don't know if something is inflamed or swollen, could be my epiglottis. I also have this dull pain coming from the right side of my back where my lung would be, I think. I don't know if I have a tumor or what could be making it feel the way it does, I've had back problems so it may just be that and the nerves are stressed. Any have an suggestions? I also get really bad anxiety about it and hyperventilate which makes me think I have worse breathing problems.