Yes, I'd be surprised if it were impossible to get... I mean, it's used in both pharmacy applications, and food as well. You might try some restaurant food and materials supplier chains? Have you checked at all your local pharmacies? I don't know if your medical provider is supportive of
vaping, but if so, perhaps it's available by prescription? Around here, even Walmart carries it, but I'm not sure what country you are in? It may be easier to find it someplace IN country than to try and import it? Sorry to not be of more help.... I don't know of any safe substitute for VG.
Good luck!
Anna