Hi There bbk186, While none of us can diagnose you, we can give our thoughts.

My first thought was since it occurred after a flight was deep vein thrombosis or pulmonary embolism. Did you wear any type of support hose on your flight? Sounds like you were really cramped in the way you were sitting.

I would get another opinion from a vascular doctor/surgeon if you can get in ASAP to see one. I would try and reach out to a big well known hospital group for a 2nd opinion....I know, it's 6 months or longer for these specialists and tell them its urgent. I'm not sure where you live, but, is Mayo, Duke or Cleaveland Clinic a possibility?

I see a lot of things have been ruled out, but, you are still in a lot of pain and I am so sorry.

Praying for answers for you and relief ASAP. Blessings....