There are other ways to treat nausea. Smoking 'spice' is more dangerous than smoking pot. I don't recommend either one. But 'spice' has chemicals in it that are AWFUL for your body, and can cause all sorts of negative effects like nausea. Please look into another way to treat this without the 'spice'. Your doctor can help. Blessings - Blu
I've heard horror stories about synthetic... I would definitely seek a medical opinion...