There is a sudden growth spurt everyone experiences right? My younger brother, between 13-14, had a drastic change in appearance, he went from being below my chins to taller than me in a few months, his voice got deeper, his face got bigger. I'm almost 18, and my appearance almost hasn't changed since I was like 12, except for a smallpox height difference and slight maturing of my face. I have a really narrow body, I'm not that short(1.58m) but i look shorter than I actually do. Almost everyone guesses my age to bell 13-14. I feel like if my body doesn't drastically change within a few months i'll stay this way my entire life. Do you guys think i'll grow and look more mature enough? Do you think im still yet to have my growth spurt or i'll just age slowly?