Hmm, sounds dodgy. I've not ever had that trouble so can't give a definitive answer, but to kick your thread rolling, I'd say look at the height and angle of your saddle. I wouldn't be surprised if it was a bit too high and pointing upwards at the nose, as a guess. If it is, maybe angle it so it's flat or only a couple of degrees up at the front. If you still have trouble, maybe try one of those saddles with a hole or groove in the middle, which is supposed to take the pressure off your crown jewels.
If when you say 'get the feelings back' you mean 'fix it so it doesn't keep happening', try the abovementioned. If you mean 'my old chap has been numb for a week, what should I do?' then get theeself to a medic. Seriously.
Unless by lower regions you mean your ankles…
A previous thread on similar topic