may have injured my glans hanging ots

So the after the first set of hanging ots I noticed that right in the middle on the top of the glans it is very very sensitive. Kinda like when you free ball and you’re wearing jeans you get that ‘pain’ on the glans. It’s that sensation but it’s only on the top middle part of the glans. any idea what happened? I’m going to take a few days off and see if it gets better. thanks!