You should not be feeling pain after your fit. It may take time to become accustomed to your new position but it should feel generally pretty good.
Certainly no pain.

As the others mentioned you should go back to the fitter and have him work with you. If he is a professional he will give at least some follow up especially if you are having problems.

Oh and defiantly bribe your fitter. Primo beer, homemade brownies, cakes..

Victor
Bicyclelab.com