Thanks for the info.

Is it correct that if the oil is purged in an oven, CBD & THC will be turned in CBN?
If using Butane and no solvents, could it contain heavy metals?
If getting an oil, one suspects contains heavy metals how to purify?

I up dosed from a pin prick dose of RSO to about twice this last night. Again, horrid sensations, palpitations and insomnia... Does this means THC is higher in this oil? (It was bought, too ill to grow my own).