Catchers get the crap beat out of them by foul balls and many other types of contacts with hard and fast moving objects. I admire that you were a catcher. I would never play that position. Your post got me curious about catcher injuries and I found this on
Fangraphs that lists injuries, along with for all players who went on the IL by year, position, and team. And yes, I do know that players take off for days and don't go on the IL for nagging injuries, but those aren't listed here. I wasn't able to find a way to just list catchers.
Undisclosed seems to be a popular injury category. Ten catchers had that listed as their injury. I only checked for this season, but except for a few hand injuries, which could come no matter what type of stance the catcher is in and could also happen while batting, I didn't see anything that stood out for injuries because of foul balls and wild pitches. There were quite a few concussions too. But, those are to be expected because of the position they play. I'm not sure if their stance would play in to that. I'm not sure how stance related injuries could be tracked, but I'm also sure the teams do that internally.