hello shrike doctors. more often than not, i've noticed that i cannot breathe very deeply. it's not the same out of breath i feel after physical activity. it actually feels like a tightness in my stomach/ribs/lungs that's making my breathing a lot more labored than it should be. i do not wheeze or cough and i don't feel this way when i walk around town. i am always anxious when i feel this way but i feel very deeply that the lack of oxygen causes the anxiety instead of vice versa. am i dying