What would cause a brief burning pain in my leg muscles *after* they have been stretched?

Question

Thus far it only affects muscles (ligaments/tendons?) along the outside and back of my legs. May extend as far as ankles. A sudden rise in internal pressure, such as coughing, while I am standing, is also painful around the hips.

Answer 1

try a warm shower and some tylenol after your exercise, see a doctor if symptoms persist or worsen, good luck