I have sharp shin/ankle/knee pain, twinging, & clicking. 2 long haul flights in 3 wks, negative d-dimer.no swelling, worse resting! what is it?

Well multiple jts: Are involved. You should go see your family doctor and see what they think. Generally when you have multiple joints aching it is not from a single injury. One thing that can cause multiple joints to ache and muscle soreness is the flu.

Arthritis.: With multiple joints invovlved, not related to your flights. You need a work-up!