Hi, thanks for using healthcare magic It sounds like gastroenteritis which is infection and inflammation of the gastrointestinal tract resulting in all or some of the following symptoms: nausea, vomiting, abdominal pain, diarrhoea, loss of appetite, muscle aches and pain, weakness The most important aspect of treatment is preventing dehydration by replacing the fluids loss during vomiting and diarrhoea. It would be best to use a oral rehydration fluid from your local pharmacy or a sports drink like gatorade. These would give your back both the fluids and the electrolytes that you are losing. Loss of electrolytes would contribute to your muscle aches. There are medications that you can use to decrease the vomiting, diarrhoea and muscle pain that should be available over the counter at your local pharmacy. eg peptobismol, paracetamol, dramamine I hope this helps