Okay so I just turned 19 and male and think I'm still going through puberty. I am still developing body hair (chest and back) for example. as for shaving well can go 3 weeks without shaving and only do shave really when I have to for work other wise I could go a month. some of my friends shave every day and one can grow a full bread within a week. about 2 weeks ago I went to Jersey and was stopped by the police walking though the airport as they thought I had run away from home and didn't look older to fly on my own Also today during my shift at work we were talking about me getting stopped and they said how I didn't look 19 more 16-17. last year went on holiday and lost 3 stone and can not put the weight back on (have been to the dr's they not found anything) is this normal for someone of my age?

I'm not really worried about it but would just like to know :)

Thanks :)