If this is my CV joints going I have to admit it is the first time I have heard of them wearing out

I have been going offroad a bit lately but everyone always seems to actually destroy thweirs before they age.
What I am noticing is:
When I am driving straight nothign is wrong.
When I am turning I can hear a noise like my tyres are rubbing on something.
When I am driving slowly with my steering wheel at full lock (like into or out of a parking space) my steering wheel keeps bouncing back 1 inch or so from the full lock.
When I stop my steering pulls left. I thought it might be the camber of the road but I tested the other day - on the other side of the road it doesn't pull right - it stil goes left but less so. If I am driving slowly the pull to the lefti s harder.
All of this sounds like the tyres are rubbing on something but I have checked and they don't appear to be =- they are the standard size but in recently purchased muddies.
My power steering fluid is full andn ot leaking.
Any adviceo n what I can check? Does this sound like CV joints?