Not sure if medicinal vape pens are different than recreational, but those things are wildly inconsistent aunless you really know how to use them. It’s very, very hard to know if you’re getting anything or not, and by the time you do know, it’s too late and you’ve probably ingested more than you intended.
EDIT: I’m happy for you that you got your card. I truly believe it’s a miracle for a lot of issues, and specifically Parkinson’s. There is just too much evidence to ignore how life changing it can be.