Had a dvt in the right leg and pulmonary embolism due to the dvt.

All that was about two years ago now and i fully recovered with what seems one exception.

If i push the right leg too hard by walking or going to the gym everything from the knee down starts getting very heavy.
If i keep pushing it i have extreme trouble keeping the foot from flopping around and walking involves more swinging the leg froward the walking.

Even iam not stubborn enough to push it beyond that point and if i stop and relax from five minutes or more everything returns to normal.

Had three ultrasounds to check the bloody flow and one nerve test..all of which came back normal.

Doctor does think i have osteochondritis due to the clot but that doesn't explain the extreme issues with the knee and below.

Was wondering if i could have valve damage due to the dvt that's only showing up under heavier loads.
The feeling is exactly the same i get when i get a really good pump from working out at the gym..heavy hard to more tell the pump fades.

One very frustrated person who like to be able to walk more then a couple of blocks without having to stop and let the leg recover.

Any ideas?