I've tried all the natural remedies that apply, and cannabis isn't one of them. I know all about it, it just isn't an option for me (and it's legal here, so that's not why). I've done all the diets and exercise - even got certified as a personal trainer at one point. Getting off allergens helped with some things, but not others.
I have some theories about what it is, but no confirmations. A big suspicion is that it's autoimmune. All my allergies kicked in in adulthood, and the vitiligo that I've had one tiny patch of all my life only started spreading in my 30s, and that's your immune system attacking the melanin in your skin, the way it attacks allergens - a thing that normally wouldn't do you any harm until your immune system decided it was The Enemy.
It's not about a label, it's about figuring out what it is so I can figure out how to fix it. Because life isn't worth living like this.