Completely normal. I did it all the time when DD was tiny- and still do now, occasionally and she's a whirlwind 2.7!
If you want crackers - try this: When DD was tiny, DH used to make comments like 'oh, shush, you, or I'll leave you here (in the town centre) for someone to find and take you to the Cats home'.
He was joking, but all I could see - and I mean see - was my tiny newborn being abandoned in the middle of the town, at night, in the pouring, freezing rain (it was February!) and crying her heart out with no-one around.
I asked him to stop - I even posted on here about it (and got told I was daft, I'm glad you're getting a gentler response!) - and it wasn't until I dissolved into a hysterical puddle outside Asda
that he 'got' that it was different for me, and stopped. He did point out I was being ridiculous though, and he was right.
As long as you know the feeling is extreme and can breathe through it, you're fine. If it ever stops being that, and you can't settle it down, don't be ashamed to ask for help.