This leads to muscle break-down, a process called 'rhabdomyolysis'. If this is the case you should see your doctor at once because treatment may be required. Most people are perfectly well between attacks but a few develop mild, permanent muscle weakness. There is no proof that a change in diet will help control these conditions although some people have noticed an improvement on a high protein diet and regular aerobic exercise. The symptoms vary from person to person.
Some people find they can sprint and weight-train with no ill effects.
Others can play half a game of football, only developing symptoms in the second half. The important thing is to find your own limits and stay within them. Sometimes you will experience symptoms when you are feeling unwell or fasting. Fasting is another occasion when we use up the body's fat stores to provide energy. You may feel muscle pain, which can be an ache or very intense, both during and after exercise.