I just joined so I could comment on a post I read from @gabrielm and his breathing issue...basically that just started for me and it's making life so frustrating and it was so nice to stumble across your post and read others coping with it. I can't say my life has been the healthiest but when I went to doctor my hearts fine, oxygen fine, no clots and I don't have allergies that I know of. People tell me it's panic attack , it just doesn't seem like it should last for weeks but a possibility. I'm going to lookup your breathing technique you named and go from there. Please let me know if anyone has any other suggestions of dealing with this.....