So since June, ive had this sensation that i cant take deep, satisfying breaths that fill up my lungs. I cant complete yawns anymore either, and i generally feel like my capacity has been reduced and it just feels like my chest is tighter. I do have an anxiety disorder, but its not only like this when im anxious. Like i said, its been going on for 3 months, and i havent even been able to get one normal deep breath like i used to in that span of time. I saw a lung specialist, did the test where you blow into the machine, and i was told my results were normal. How can this be? I dont feel like i can breathe as well as i used to. Im supposed to go in for one more test but the doctor seemed pretty convinced that i was fine. So then what could be making me feel this way? (I know some are going to say anxiety, but i reiterate, this has been a constant thing since june, im still like this even when completely relaxed). My heart has been thoroughly checked as well so nothing going on there.