Hi!
I'm in Ontario, not BC, but I can provide a bit of info. Healthcare in Canada is provincially run. Disability is part provincial and part federal, I think. So, if you're thinking about moving to BC, look into BC healthcare. Many Canadians also pay for - either out of pocket or from their earnings as employment benefits - for private health insurance, to 'complement' public coverage. I don't know, as an Ontarian, but I'd guess that in BC PT isn't publicly covered (it might be if you have a disability) and prescriptions might be covered.
This page has info on medication coverage and how to access it. Might be a decent starting point: https://www2.gov.bc.ca/gov/content/health/health-drug-coverage
Also, https://www2.gov.bc.ca/gov/content/home/get-help-with-government-services :
Service BC can guide you through Government of British Columbia programs and services. Information may be collected to help us assess and respond to your enquiry.