Can restless leg syndrome cause symptoms in the feet too?

Sure: Can affect entire leg, including foot, but the tingling might suggest an underlying peripheral neuropathy or less likely, poor blood vessel flow. Original RLS descriptions included association of nerve problems often acting as triggering events. Think it is of value to see what is present. Although EMG might uncover, perhaps a skin punch biopsy may be needed.

Yes: Stretching before and after exercise is important some labs may help determine/rule out metabolic causes. Drinking a glass of tonic water each evening often resolves this problem bc the quinine in the tonic water is helpful to stop cramping.