Why do I sober up so quickly?

I’m a 5’6 male, so below average height and between 9.5 and 10 stone. So around average BMI.

I’m a physically fit 29 year old. I workout everyday and my resting heart rate is between 40 and 50bpm.

I can literally get drunk (or heavily tipsy) from 2 pints of 5% alcohol, however I also sober up (as in clear-headed and no obvious cognitive impairment) after abour 30 minutes.

I can literally pass out from 1/1.5 bottles of 14% wine, and literally have thrown up after half a bottle (spaced out across a few hours, not in one go) but if I drink a bottle really quickly I will sobee up extremely quickly. Whereas everyone else I know will drink far more than me, my mate (who, in all fairness is 6 foot) can drink 3 bottles and not be totally drunk.

But I sober up very quickly, while equally getting pissed very quickly. That’s what I don’t understand. I understand the biological reasons for people being heavy weights vs light weights, but have never met anyone like me.

It’s weird.