Emily

Neither Eric nor I are medical doctors, but we are brother fracks. What we do and what works for us may not work for everybody. Yet I have not seen any credible studies nor indication that vaporization (which by definition does not have "smoke", it's before combustion temperature) of cannabis has a proven carcinogenic effect. Neither Eric nor I have a suicide wish, death wish, but on the contrary a raging ZEST for LIFE.
It doesn't sound like this is a good fit for your caregiver situation and I can respect that.
Please do have her TSH levels checked.
Charm