I don't mean to be negative about this, but I feel you would have been better off if you had stayed in the area where you had the surgery until the knee was completely healed. Either in California, or where you live now.

Driving across the country with a sick knee was not the wisest course of action. If at all possible, you should limit what you do with that knee until it is healed. That means no more flying through the trees.

That's the opinion of a long time RN. I hope you heal quickly and without further complications. Your age is a very positive factor for you.