If you feel some pain in muscles or any other changes in temperature, altitude effects, weather, you must slow down and ski more carefully. If a problem remains you must take a break and relax somewhere (I recommend you to sit in the sun or in a nice restaurant/coffee bar). I don’t want to think about more serious problems, but should it persist for some time, I suggest you consult a doctor.
Skiing tip 5
Skiing tips - Preamble
If you feel any problems you must ski slowly.