<human>: Can you give me the gist of the text in a nutshell?

So, I've had my Garmin 305 for a couple of months now and up until today my highest HR hit was 200.  Today I hit 207 in my first 5K race (in 15 years).

My calculated max HR is ~188.  220-age and most of the other formulas all put me around 188 or 189 (I'm 32, male)

207 seems kind of high but my only base of knowledge are those HR formulas and I know that they are biased towards the sedentary.  But 207 seems quite a bit higher than 188.

Does this seem odd or something I should look into with a doctor?  Does anyone else have a large differential of Actual vs Estimated?

On a side note, I was fairly hungover when I ran.  I know HR can raise with dehydration and the like, but can it increase the max too?  I guess I always assumed it just got you closer to your max.
<bot>: Hit HR 207 bpm today, estimate formula says 188 bpm (for a 32yr old), should I be concerned?