My feet & ankles are swollen 2.5 days after a 2hr flight...happens whenever i fly. i'm in my 30s, non-smoker. should i be concerned? is this normal?

Ankle swelling: Flying dehydrates your system. You lose a lot of body fluid in a non hydrated environment and sitting with your legs handing down against gravity pulls the extra fluid in your vascular system to the lowest part of your body. I would hydrate vigorously with 3 liters of water or gatorade and elevate your legs. This should help your kidneys recycle the fluid in your legs. Check your blood pressure

You should consider: compressive socks when flying and discuss with a doctor if you should take baby aspirin or something else prior to flights..