I Have Been Having Some Issues For About Three Days.

I have been having some issues for about three days. I get this light headed weird feeling in my head. I am not sick per say in any other way that I know of. Just get this funny feeling in my head, foggy, I guess. I have never passed out so I do not know if I am having a slight issue that could get worse, making me pass out, I just do not feel right in my head. I am uneasy feel weak, not sure how to explain it. I jut know something is not right. Not sure what other information to give you.