Hi, Ive Been Having Severe Breathing Problems For Last Week.

Hi, ive been having severe breathing problems for last week. I have taken prednisone, inhaler, and i take hydroxyzine for anxiety. None of the medications allow me to catch my breath. I have a tooth infection and dentist said need a root canal. Wondering if this is problem. Really starting to get worried, i cant breath and feel like im going to die soon.