It's like I can't breathe.

When I get stressed out, my nasal passages and my throat tend to swell shut and I have a really hard time breathing. It’s the weirdest thing and there is nothing I can do about it.
When I was a little kid, my sister and I went to Germany to visit my aunt. Being completely tied to my mother, I started to freak out one night (as she was not in Germany with us), and just stopped breathing. I simply forgot how to. My sister grabbed me and brought me to the kitchen where she gave me a tablespoon of “medicine”. I trusted my sister entirely and threw this stuff into my throat. It was vinegar and it shocked me into breathing normally again.
Even now when I am panicking and have forgotten how to breathe, I am fine if I can distract myself, or shock myself out of it.
I don’t know why I am so stressed right now. And I don’t know how to shock myself out of it. It’s a lot more stressful than I knew to be so sorely disappointed.
But I would not like a tablespoon of vinegar again. Unless my sister is doling it out.