I've had some of the same issues. Shouldn't happen. On the other hand, there's nothing wrong with stopping for a minute or two ever once in a while, either, whether going numb or not.
On the hand pressure, moving your hands around periodically should help, rather than always in the same position.
On the foot numbness, a stiffer sole might also help, if you're currently using a fairly flexible shoe.
__________________
"be careful this rando stuff is addictive and dan's the 'pusher'."