Laura2021: I cannot see the link yet (waiting to be unlocked or removedby the moderators), but I would not order anything before talking to the German doctor who takes over the treatment.
Also, make sure how you will be health-insured before you decide anything (incl. the move): If you have to join the private insurance scheme for some reason, they can (and probably will) exclude potentially expensive pre-existing conditions like diabetes and blood pressure!