Hey there Jaded,
Congratulations on being able to work out again. That's a start.

Two years ago, I was just getting back into shape after getting out of it for a while and then I sprained my ankle. I know what it's like to have a disruption. The doctor told me I probably wouldn't be able to walk for a month. Not only could I walk a month later, but I was up on my mountain bike riding trails. I did this by taking baby steps.
I realize that a sprained ankle is different than a blood clot by far, but I think it's important in both cases to take baby steps. Start walking and doing exercises on a stability ball. I have a blog with stability ball exercises if you are interested. Then move onto riding a bike and lifting lighter weights. Maybe find a buddy to work out with. Hang in there and good luck!
Brianna
witnessforfitness