I Was Prescribed 70mg Vyvanse For A Binge Eating Disorder

I was prescribed 70mg Vyvanse for a Binge Eating Disorder several months ago. The vyvanse worked well for me.
However, As of right now, I am unable to receive a prescription from my doctor for my binge eating. My doctor said a lot of his patients are going to Michigan and recommended that I go to Michigan where doctors can write and I can fill a prescription for binge eating. I don't know any doctors in Michigan as I have recently moved to the Midwest. I don't know what to do. My doctor is willing to share my files with another physician.