Can this have something to do with some thyroid problem?

I have a history of thyroid disorder, but it was 5 years ago, got cured. Now i'm suffering from many other problems. I have this suffocation from two weeks now, growing everyday. Can't take deep breath, as left side of chest hurts if i do. The suffocation is really awful and my physicians aren't taking it seriously. Just putting the blame on anxiety when they should be trying to figure out the real reason. I'm starting to hate this medical system.

Hi Voice. How was your thyroid cured?
I assume that even so you get it checked regularly? If not, time for a thyroid panel.