Ulcers (sores) cause erosion in the protective lining of the stomach or duodenum (upper part of the small intestine). These persistent, sometimes burning, cramps typically occur between meals and at ...

Since that time the veins in the left leg and upper abdomen had become larger and the cramps occurred three to four times a night. Examination showed dilated upper thigh and lower abdominal veins ...

What gives? Few things are more disruptive to sleep than leg pain at night—most often caused by muscle cramps. They strike without warning, can be very painful and become more common with age.