A little set back

I made it over to the track - yah - but when I started to jog my left knee gave me, what I like - or in this case don't like - to call, pain - boo. It was a pain that I didn't think was going to do me much good if I tried to run quick so I came home. Instead I did an easy half hour on the bike which didn't seem to cause too much distress. Not sure if I'll be able to run tomorrow. Mayhap I've started to run before I can walk. But I'm tough and I'll dig in and carry on.