I am a returning student and have an extended study permit, but I am still waiting for the TRV that I applied for from India. I did my medical exam 4 years ago, so I assumed that I wouldn't need to take it again since I had already given one the first time I applied. I am not going to be working in any of the industries that require a medical exam. I have also not lived in any other territory for more than 4 months. Is it normal for them to request a medical exam again, or is it a mistake?