Is 4'6 (137cm) too short for a 19 year old girl?

Hey everyone.

I'm a 4'6 girl from the UK. I'm NOT a dwarf. Recently loads have been making fun of me at uni for how small I am so it got me thinking, am i actually just too small? What's everyone opinions on that?
Is 4'6 (137cm) too short for a 19 year old girl?
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