Dude, just crawl under the front of you VX and visually inspect your boots. If there are not torn, your boots are fine. If they are torn, you WILL know. You will see ripped rubber, and likely a whole bunch of black grease all over down there and all over your wheel well.

If your boots are torn, and you have been driving with them torn for a long time, then your CV joints will likely have dried out and gotten a lot of dirt in there. That is what will cause your CVs to eventually fail. The cage that holds the balls needs to be lubed so things move easily. If they dry out and loose grease and get dirty, they will get hot (more friction) and fail. You will notice clicking and popping when you are in 4wd.

Bart