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.
Other conditions that cause knee pain include: 1  Bursitis. 2  A bursa is a sac of fluid that resides below the skin overlying your joints. 3  Overuse, a fall, or repeated bending and kneeling can irritate the bursa overlying the knee cap (patella), causing pain and swelling. The iliotibial band is a piece of tough tissue that runs from your hip down to the outer part of your knee. 2  If it's irritated by overuse or other problems, it can become inflamed and cause pain on the outer side of the knee.