Sudden skin irritation with Band-Aids

So I’m a pale person, but I’ve never really had a problem with delicate skin or anything. I’m on a bunch of anxiety medicines, but I have been for a long time.

My cat likes to lick my arms while I’m sleeping and I sometimes wake up with a pink friction burn. So I cover it up with a Band-Aid until it goes away.

Well, this last time when I took the Band-Aid off, there is now an outline of the Band-Aid in angry red on my skin. And it hurt a lot to take it off. It was a regular Band-Aid band Band-Aid. Same type. I’ve always used as far as I know.

What has happened? I never used to have a problem with Band-Aids. I did recently get diagnosed with diabetes about six months ago, and I turned 50. Other than that nothing has really changed.