### Patient: Doctor, I have been experiencing some strange symptoms lately. I have had an allergic reaction, apnea, and noticeable weight gain. What could be the cause of all these symptoms? 
### Doctor: It sounds like you may have Acanthosis nigricans. This condition is characterized by skin changes, such as darkening and thickening, typically in the folds and creases of the skin. It can also be associated with symptoms like an allergic reaction, apnea, and weight gain. I'd like to run some tests to confirm the diagnosis and come up with a treatment plan.