A girl doesn't know if she's orgasmed?

Ok so I had sex with this girl. She has told me she has never orgasmed. Then last night after we did it she says how do you even know if you've orgasmed. She cummed a lot and when I touched her in certain spots she'd *** like no tomorrow. Almost like she peed herself. Her breathing speeds up, her legged cramped when I touched her in certain areas, she clenches my bed and then me. Is these signs of a possible orgasm or close to one? Will she knows when she has one? I've had sex with a few women who have had these signs and knew they orgasmed. Help?