is this like, a normal thing or am i going to die?? when i breathe, my breaths are very shallow, in my chest instead of my belly. when i lie down and try to relax, it’s easier to breathe deep, but standing up or sitting down, i feel very constricted. it doesn’t help that i am always hyper-aware of the problem, so being anxious about my difficulty breathing makes it even harder to breathe in some kind of stupid fucking feedback loop. sometimes i start to feel lightheaded if i breathe too much. is this something anyone else experiences? thanks