Dyspnea anxiety. Suffocating anxiety. Help pls.

Feels like I cant breathe. Im breathing fine. Have had this going on for years. About 3-4 years. Has destroyed me. Cant conversate, feels like im suffocating. Pretty sure I have covid now, and it is making it worse. Any one who has dealt with this please advise me. I feel sick. Literally like I am underwater and cant get a full breath. It hurts. Thank you.