ergh people are annoying me.
OP let's summarize.
using 'overweight' wasn't the greatest word to use
Whilst you are not overweight, compared to the UK average [the UK average isn't exactly known to be slimline]
HOWEVER you are overweight, compared to your previous self.
Yes, you are healthy, blah blah, and whilst will say you are fine, I know that's not gonna do you any favours as others might think.
In other words, if the others were to suddenly add on 20lbs, would they feel as confident in themselves?
Self-confidence isn't all about how you feel about yourself.