I have a slight foot tingling but am not diabetic or have a serious illness. what could it be?

Nerve compression: Various causes iclude lower back conditions, tarsal tunnel, nerve entrapment as well as other forms of neuropathy. If this persists, see physician.

May be neuropathy.: Non-diabetic neuropathy is treated the same way as diabetic neuropathy in most cases. If you have tingling, burning, and numbness, or even pain, some medications reduce the pain or tingling, but not much can reverse numbness. See your doctor for evaluation and possible oral or topical medications.

Possible neuropathy: Depending on the affected nerves, symptoms of neuropathy can range from a numbness and tingling sensation, possibly a burning sensation, to an uncomfortable painful sensation of the extremities. Neuropathy may affect your digestive system, urinary tract, blood vessels and the heart. For some people, the symptoms are mild; for others, it can be painful and disabling.