Sorry to hear that. AFAIK it's legal in most places to buy spores and grow your own, and dosage is relatively easy to control. Maybe time for a mycoculture project?
Don't let that stop you though GP! It's a fun project and very satisfying to see your mushrooms finally sprouting up after a month or two of work. The risk of getting caught is low, and even if you somehow did, it would probably still be worth the penalty if they have a positive effect on your wife's headaches!