Mri shows "there r tiny three foci of 3 mm subtle increased signal in right frontal lobe white matter?i feel block left side body from head down 2 leg

Stroke?: At your age, stroke is probably less common than ms. Even so, if located in critical areas even tiny lesions can cause major damage. Have you seen a neurologist?

Normal?: Tiny foci of signal abnormalities in the white matter are common on mri. Typically 1 for each decade of life is considered normal, so for your age 3-4 would be okay. It is especially common in patients with migraine.