Anyone with constant air hunger and anxiety during stressful time?

I recently went through several very anxiety filled weeks. I was taking my emergency medication (ativan) almost every day. 11 times in 15 days, with permission from psychiatrist. He wants me to slow that down though but says I can use it until I see him in a week.

I am constantly hungry for air. Nothing works, least of all breathing exercises.

I was feeling a bit better and didn't take ativan yesterday, but then I got anxious and took half a dose. I felt OK but then got really anxious later. I can't sleep now. My whole body feels tight, like its going to pop. And I can't take ativan because it's been too many days in a row.

Help please. I am so scared.