I'm A 28 Year Old Male. I Have Been On

I'm a 28 year old male. I have been on suboxone for a few years and within three past 6 months I've been prescribed vyvanse. I was never diagnosed by a doctor prior because of never going to to a doctor. I had to switch doctors because mine closed down and the new doctor refuses to accept the prior diagnosis. I have been on 70mg vyvanse daily for 6 months yet the new doctor does not care if I withdrawal from it.not to mention the medicine greatly helps me get thru each day. What should I do