<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I feel wheezing and also have some arm pain. Additionally, I have noticed a lump on my knee. What can be the reason for these symptoms?  <response>: These symptoms can be caused by a rare genetic disorder called Friedrich ataxia. It affects the nervous system and can lead to difficulties with movement and coordination. The lump on your knee could also be a common symptom of this disease. 