I don't know what I have but I was hoping someone might help

I'm over weight, My left arm and leg have a pain in them sometimes, and I haven't had my period in months.
( I've never had sex so it's not something to do with that)

This is a problem that is almost impossible to help with over the internet. Your doctor needs to take x-rays and blood tests, and the like.

The pain in the left arm and leg could be something serious, so you need to make an appointment with your doc to get the whole picture.

Ahh Heart Attack! Na Im Just Kidding