I've since not been listened to at all,
Yeah, that sucks.
I have read some years ago tips for women on reddit how to deal with misygonic docs that don't take problems seriously. The gist of it was to present a story with your appearence that will help the doc emphatize with you (as I remember that was to present themselfs as business woman where illness prevents them from working.)
I guess something similar could be used for drug user that somehow is intepreted as addict.
I am uninformed but I heard from psychiatrist that weed has some negative effects on mental illness.
I would consider stopping weed for a bit, ride on painkillers(? I am totally clueless) for that time and try to get prescription for weed if it's possible (wikipedia says that it's legal for medical use.)
I assumed that you have some sort of nerve pain like your friend and it would be unbearable.
Digestive issues are textbook examples of psychosomatic problems so I am less surprised that they didn't help you. Maybe in what they are saying is a kernel of a truth but that's not for me to judge as I have my own life to live and you have yours.
I have high hopes that therapy will help you.
I am basically Socrates. And now I don't know what to do with that lack of knowledge. Maybe I should build a time machine and stroll around in an ancient Greece or study philosophy with my inflated ego. /j