Sounds reasonably normal to me. I don't think I'd worry unless it persisted more than a week or so. I sometimes get random shooting pains after very long runs, also knee/ankle swelling, extreme stiffness, odd muscle spasms and cramps, legs just giving way under me, joints making alarming popping noises etc etc.
With recovery, I tend to find the first time is the worst for any new longer distance. First time I ran a marathon I was hobbling for a week. Now I've done a few, I'm usually pretty much okay after a couple of days.
P.S. Congrats on your achievement! 
