Keep up the good work. Just don't overdo it too soon. I've been having knee issues and got diagnosed today with Patellofemoral Pain Syndrome (causes a lot of pain in knees and sometimes causes them to lock up and stop working, especially on stairs). But my longest walk was 24 miles last year with a 40 pound rucksack. I've done more 10+ mile rucks than I can count when training up for GORUCK events.

I start PT Monday to see how my knees are going to hold up going forward for doing more events. I was scheduled for one tomorrow night (8-10 hours+, 15-20 miles+) but had to bow out due to doctor's orders.

I normally walk anywhere from 5-8 miles just on my job every day.