Doesn't sound familiar to me. And I've been exploring quite a bit. Then again, I haven't found any of those horrible (intolerable) bugs and glitches either.
Gotta keep searching, I guess.
Your lucky I had just started a new game due to the notorious glitches that got me stuck on a cliffside I tried to jump off.
I was in GS just robbed the bar and talked to sunny, went out the front door, autosaved then quit.
The kicker is, when I went to play again I was stilled crouched outside the saloon but I couldn't turn, couldn't stand up.
All I could do is go forward and backward.
It wasn't my controller, I tried multiple controllers, and when I started a new game it ran like clockwork. (minus walls)