Is there such thing as non painful migraine?

My head doesn't feel physically hurt but I do feel like this ache or eye strain mostly in my left eye and this upper head sensitive when I touch it with fingers. But it's this annoying feeling that I just cannot understand how it occurred. Basically I'm feeling like my head from the back is floating as if it's dizzy or vertigo type. And I can feel it when I walk and sit. It's like some imbalance feeling. Sometimes I feel like pressure in the back of the head.. It's been happening for a week already. And like I feel confused many times. It's hard to recall information, remembering stuff and easily forget stuff. I just can't think straight..I don't know what's going on. I didn't have any injury. I don't fall anywhere.