Hi. I’m 13 and am experiencing difficulties. Most of my friend are talking about how “mini them” has gotten bigger. The are starting to get hair under their arms. They also said that their sack itches ALOT. My sack itches and I have definitely noticed mines have started to hang lower than normal. I have not experienced anything of the other two. Should I be worried because it is embarrassing when I take a shower at school, or if a girl wants a pic. What should I do