I recently spotted a mole on my trunk area that didn't look exactly how it used to( not sure if it looks much different because i didnt pay much attention to it before), it looks comma shaped and a part of it is raised.

When you just look at it, it seems like an oval mole but when you stretch the skin and look closely it you can see that it isnt oval and that it is comma shaped. It is brown coloured. THe mole is pretty small about 2-3 mm, but it is noticable.

I am 16, should i be this worried about this? what should i do? Do hormonal changes affect the growth of moles? Is it normal to have a mole just grow all of a sudden then stop?