It felt like they would be sore and red but visually they didn’t look different at all

Yes the pain sometimes goes in to my chest to or is just in my chest.

Can't do clothes that touch let alone rub my armpits.

I have to wear a short sleeve night shirt to bed. If I wear something like a tank top and it rubs my armpits even a little bit, I'm in pain. I get a rash and I'm miserable.

I do, yes