They may have shipped the completely wrong seed or you had a high THC Pheno.
Websites say the seeds aim for under 5% THC and near 10% CBD, that should be enough CBD to cancel out for most people, but people vary.
I don't get high smoking my Guawi (100% Sativa) but the rest of the family says it's potent stuff. All I notice is the pain relief. I suspect your reaction would be quite different.
If you are wanting CBD for medical reasons, you may want to consider another way of taking the Candida to avoid the high.
P.S. The terpene profile (how much Limonene, etc) can affect a panic reaction.
P.P.S. Many people report the smell of freshly ground pepper helps with cannabis caused panic. Grind peppercorns and hold the grinder under the nose to smell it. Repeat every minute or so until the panic goes away. It sounds odd, but it really does work for a lot of people!