Hi Lanie66
Do you suffer from anxiety?
My breathing gets affected when that strikes me.
Just can't take a deep breath, until I slow down my breathing, or bend forward.
My heart races at the same time.
Also, I had a period where I couldn't get a full breath, and I read somewhere it was due to low oestrogen levels, it felt different to the anxiety breathing, so when my oestrogen levels obviously got higher with hrt, it stopped, and I've never had that again. So it could be connected to your fluctuating hormones. As you say, you're in peri, so they'll be all over the place.
Or, it could be just connected to a hot flush. Some kind of instant thing connected to that that happens simultaneously. ?
You could pop to doctor and get checked out, if it continues, just for peace of mind if not for anything else....
Xx