1 A person may or may not have any symptoms previously, but all of the sudden a plaque ruptures, triggering a chain of events and a sudden heart attack.  The other is a more gradual progression of coronary disease. In these patients, an artery is getting narrower over time.
Knee pain at night causes. Common causes of knee pain at night include sprains and strains, anterior knee pain, menisci or cartilage damage, osteoarthritis tendonitis, bursitis, torn ligaments or tendons, bleeding into the joint, Osgood Shatlerâs disease, gout, septic arthritis, overuse, and obesity.
Occasionally, stomach pain can begin suddenly. In some cases, this pain might be severe. These four causes may explain sudden-onset stomach pain at night: Kidney stones. Once a kidney stone starts moving around and enters your ureter, you may experience sudden, sharp pain in your back. That pain may quickly spread to the stomach and abdominal region.