[color=#43b607]best answer - chosen by voters ok, this can all be associated with diabetes. her blood sugar is high.. she has a lack of insulin, the body cannot use the glucose as energy without the insulin. she is an athlete and is active and needs some form of energy. her body starts to break down fats for energy-the only problem is they cannot be completely broken down and release ketones into the blood. this in turn causes ketoacidosis- which can cause nausea and vomiting. going long term with high blood sugar levels cause neuropathy (damage of nerves) due to constriction of the blood vessels (some sort of injury) in the arms and legs and this causes the tingling sensation, and diarrhea. long term with out treatment also causes neuropathic joint disease and a degeneration of weight bearing joints, this condition also causes bone to breakdown so more calcium enters the blood, causing the bone and joint pain.