What kind of bites do you think these are?

I'm sorry, this is weird, I know. Don't worry, its not my picture for the day, I just want to get some feedback haha. I've been getting weird bites recently, most of them happen in my bed, but I don't have bedbugs, I know that much.

That's what they look like. They aren't really red, but are definitely raised. The back of my ankle actually feels a little swollen. There's 5 of them and  they are about 1/2 inch in diameter. And they itch REALLY bad haha.

If anyone is a bug expert and would know what might be eating me alive every night, I would really appreciate some imput! 

Thanks!!!