I was finishing a jar of extremely hot peppers (7 pot primos) that I had fermenting on Thanksgiving day. I made a hot sauce with them and cantaloupe. I had them in a pan at a low simmer to meld the flavors. The problem was the steam coming off was potent as hell. It filled the house when everyone was arriving and coughing from the hot sauce in the air, me included. We had to open all the windows, dig out the fans to get it out of the house, freezing everyone in the process.
I was a little drunk and decided to make a sandwich. While cutting some cheese I cut part of my index finger off. Doctors were able to mostly fix it, and now I got a narly scar and only partial feeling with it.
I did something similar helping out in a vineyard. Cut part of my index finger off with secateurs/pruning shears. Not completely, but it was dangling on a thin string. It could be reattached, but it got rotated in the process of reattaching, making it look weird. Similarly to you, I also have partial feeling in it.
Luckily it was rather small. It’s an about 8x3 mm ellipse now at the the tip of my index on the middle finger side.