Chest ache shifts right and left depending on position. Pressure when breathing in cough up some mucus chest feels semi tight, Better during sleep.

Rule out asthma. Any difficulty in breathing might be due to asthma. This is a treatable condition; but if ignored, you can get permanent damage to your lungs. You are 22; now is the time to get therapy. Are your headaches and anxiety due to your not getting enough air to your brain? Let's find out NOW while you can fix these things.