Catching up?

As much as I'd like to think I'm immune I know that at some point times will slow and I'll need to adjust to a new normal.  Just not sure that I'm there yet.  Last week I hit a 19:01 for the first summer series race.  I think the last time I was over 19:00 was when I first moved to Arizona and was getting off an ankle injury.  At this point I've had a month of 25-30 miles a week and no ailments.  So...have I started to slow...or am I just rusty?  It's been nearly 2 years since I did a 5k, so maybe I just need to get back into the groove.  I've come back from injuries before and, while not knowing really, I've always come back to what I was before.  Now, I'm trying to come back from aging.  Not that I'm old-but I am older.  Or am I just not doing the training I used to?  If I get back to something close, am I still that runner?  I guess in the end all I can do is put my best out there and appreciate the effort - and not be worried about the time.  Those will come, whether faster or slower.  But I can always compete - always give the same effort.