I'm not a Dr SK. I have no idea what they might do, but not seeing one seems counter productive here.
Won't you need to see a Dr about your alcohol withdrawal anyway?
If your withdrawal from pot leaves you with anorexic type symptoms, extreme anxiety and insomnia, your best bet is to see a Dr, surely?
I'm not trying to be unhelpful. Maybe they have doctors especially skilled in detox in CA? I'd look for one of those if you're concerned.
My pot withdrawals were very mild compared to yours so I really have no experience to share there except to reassure you they do pass.
D