I Take Klonopin That Has Been Prescribed To Me For

I take klonopin that has been prescribed to me for over 15 years. I take it for involuntary tremors in my neck which is genetic in my family. I am retired and applying for a job as a freshman high school baseball coach. I took my physical today and they listed I take a controlled substance and the person giving me the physical said this could
prevent the school from hiring me. is that true?