Hi, thanks for writing to HCM. Most possibly, it could be a cramp in the calf muscle. Though there are numerous causes for muscle cramps,generally these cramps are related to muscle fatigue. A few activities that might help prevent leg cramps include: • Drinking plenty of fluids to avoid dehydration • Stretching your leg muscles or riding a stationary bicycle for a few minutes before you go to exercise • Massaging the cramped muscle with your hands or with ice • These cramps at times may be associated with POTASSIUM deficiency and so foods such as bananas, potatoes and dried fruit are to be taken as dietary supplement. • Also, calcium fortified foods like seafood and fish, almonds, flaxseed, oats, sesame seeds can help to stave off muscle pain & spasm. • Avoid acidic foods and drinks like tomatoes and vinegar which blocks the body’s natural ability to absorb calcium leading to muscle aches & muscle fatigue. If your symptoms are recurring in nature, consult a neurophysician for further evaluation and management. Hope this information is helpful. Good day