It depends on the symptoms and how severe they are. If you have a fever, severe headache, or other obvious signs of illness, it would be best to mention them. However, if your symptoms are mild and you don't think they're related to your immigration medical exam, there's no need to mention them. The immigration medical exam is focused on screening for potential diseases that could pose a risk to the United States population. It's not meant to diagnose every minor ailment or infection you may have. However, if you're experiencing any unusual or acute symptoms, it's always best to speak with your doctor and get their opinion on whether or not you should mention them to the physician conducting your medical exam.
Yes, you should mention any acute symptoms you have. Your doctor will likely examine you for any specific temporal patterns (i.e, did the symptoms start after a recent infection?) or other clues that might suggest a particular cause. However, it's important to note that many common conditions (such as the flu) can also cause a wide range of seemingly unrelated symptoms. So unless your doctor has a specific suspicion about the cause of your symptoms, he/she will likely need to run some tests in order to make an accurate diagnosis.
