Lumps?
 

Hmm, I'm getting a little worried;
I've got these lump-like things under my skin.
They are squishy and I can move them around.
I have them in my left forearm and in my shins.
The ones in my shins hurt sometimes when I move them;
You can't see them, but you can definately feel them..

Does anyone know what it could be?
Please, Help Me..

Oo it could be splints from a sports injury, usually pass after a few weeks. I dont get the left forearm one though.. If you can move them then its almost definitely not anything serious, so no need to worry there!
xoxo :D

Hard to tell what it is without examining you.
If you are worried you should speak to a doctor, but it is unlikely to be anything serious.

I've known about them for awhile...
but just don't know when they came.
I know my nephew has the same thing, except he has one in his neck, rather than having a couple in his shins and his forearm.

sounds like they could just be fatty deposits known as a lipoma. these are quite common and can be found anywhere in the body where fat is located. this can be a hereditary condition which would be why your nephew also has them.
you can get them removed if they become painful or for cosmetic reasons if they are visible.
i wouldnt worry about them. go & speak to your gp/doctor who will be able to confirm what they are.

take care