Thanks for your query.
You have acute inflammation of the knee joint, most likely a bacterial infection which entered through a minor breach of the overlying skin. It requires urgent X-ray/CT scan
of the knee and a course of intense antibiotics (if due to infection) or other drugs, depending on the cause.Tingling
in the foot is due to compression over the nerve
(supplying the foot) in the knee area due to swelling.
Consult your doctor immediately, who knows what is best for you.
Dr. Rakesh Karanwal