Could This Be A Stroke Symptoms. Shuddering And Eyes Rolled

Could this be a stroke symptoms. Shuddering and eyes rolled up but not back all the way - 5 seconds followed by slumping to side and slight shaking but able to communicate clearly yet feeling dizzy and wanting to lie down. After lying down terrible teeth pain all around lower jaw. In about 5 minutes colour was returning, breathing was calmed but teeth still very painful for another 5 minutes. After 10 minutes still feeling shaky and dizzy. After a nap of 1 hour Mum forgot anything had happened. She ate a good dinner with no sign of problems except slight paleness. (She has Alzheimers.) The facility nurse came right away when this started. and we did not take Mum to emergency though she has been in the past for similar events. Thanks