> Switch strains - tends to be more common in Indicas with a higher than normal CBD
There is no scientific evidence backing up any claims about the effects of indica vs sativa, and no way to know which strain you're actually getting, even from dispensaries. They tend to be labeled according to the subjective experience of the person deciding how to label them. It's as meaningless as any other marketing label.
> If you have a Drs note, there isn't much they can do.
There's no federal protection, and state protections vary. Some states explicitly prohibit firing employees for off-duty medical marijuana use, but not all states with medical marijuana regulations have formal employee use regulations, and I don't think any have protections for recreational use. Additionally, even where medical use protections exist, they don't cover you being intoxicated on the job. There will be court cases that clarify all of this; meanwhile there's no definitive answer.