Typing, problem with pinky?!

Ok so when I type, just like on my laptop, I don't type with the full professional keyboard thing. I do mostly that, but my right pinky finger isn't used much. And also, when I'm scrolling through websites, it doesn't do anything. This happeneing a lot led to my pinky finger feeling weird.... like I can't really bend it and it just feels like it's useless and just hanging there. I constantly twist it around my other finger so it doesn't just hang there.
Any suggestions to stop it? Why is it happeneing? BTW please dont only say type with the typing method, because it happens when im scrolling too.