Hi there, I used to love running,it made me feel great, I mean REALLY great,was a chore some days but once I'd done it I felt fab.like you I only ever did 5 k roughly 3 times a week but gradually I got foot problems,wore the best trainers you could get with all the protection but unfortunately had to give it up,ultimately needed an op on my foot which is no better,sorry if that's a bit doom and gloom but I now go walking instead.
Thing is you see 70+ year olds running with no problems,I'm 55 and hobble about like an old un😏
What I would say is run with smaller steps,I used to fly down hills and over rough terrain,not advisable.