A common symptom of heart disease is shortness of breath, which is caused by the blood being deprived of the proper amount of oxygen. Another common symptom is chest pain or pain down either arm. Other symptoms are palpitations, fainting, emotional instability, cold hands and feet, frequent perspiration, and fatigue.
The pain and burning sensation in the knees is often caused due to the damage to the structures in and around the knee joint. Wear and tear of knee joint cartilage is the most common reason. The other cause can be ligament tear, bursitis. Often, the characteristic burning sensation in the knee joint is due to Iliotibial band friction. It is a common cause for knee pain in athletes. Iliotibial band originates from the hip joint and runs all the way to the knee joint.
Crepitus in the knees may be caused by knee injuries such as meniscus (cartilage) tears. These are fairly common in people who play sports, jog, and run. A meniscus tear can cause crepitus as the joint moves.