I have a very sensitive stomach due to an injury. I tried smoking weed a few days ago, and it made me instantly sick. When I smoked it before my injury it didn't, so I know it is not the weed. It is the same strain since my friend grows it. My doctor told me it is common that people with sensitive stomachs get sick from smoke. He does not have any problem against weed. He even told me it should help my anxiety a bit. I asked him if vaping will hurt my stomach like the smoking did. He didn't know. Has anyone had this problem and found that vaping did not upset their stomach? I would think that the vapor is no different from humid air that one inhales.