So, I'm a 14 year old female, and I was wondering why my 14 year ood female friend would be blowimg me kisses, and/or winking at me. This has been going on for weeks, and I'm really concerned?

It's not a big deal. Probably you taking too seriously and too hard.

Although, If it happens too constantly:

1.Whether this is her habit and way of communication and expression.

2.She does that to people when she likes them so much. So she likes you.

3.She has one of those feelings where she has crush on you.

Ask your friend.  If you're truly friends, you should be able to talk about anything that concerns you.

Maybe she is easily amused?

Like does she laugh after she winks at you?