I think that's what's happened to me over the past few years. My social skills have gone from an average value, to perhaps downright unacceptable. I think I have lost the filter between my mind and my mouth.
No, there is a filter in place, its just that it gets too clogged up frequently, and then on one occasion just rips open and I end up causing a gigantic embarrassment. These days since I have realized the ripping of the filter, I tend to avoid situations which might cause an embarrassment, which is to say, I think I avoid any and all social interaction, beyond the lab. I should really get over that, and get back into the groove.