Is it supposed to hurt that much.....

I've not run for a month now, that said in that month i have done 580 miles on the bike (so much for the rest!) and last week i had my lower legs manipulated and in the process the person doing the manipulation managed to catch a nerve in the back of my leg to say it hurt would be a understatement but i have to say they feel a lot less stiff, i have tried to resume my daily stretching and my legs in general feel quite good, I'm off to Brecon this weekend to give them a bit of a work out, the plan is for a 20+ mile run/walk on Saturday and a shorter run on Sunday but it will be a very much a 'see how we go weekend' with a nice change of scenery.