I don't really know much about Bariatrics and pot but I think when they say wait 3 months I think they are meaning the smoke or any smoke for that matter, I mean come on people with ulcerative colitis, cancer etc eat the edibles to help them, the only thing is for edibles, you are on liquids and then mush for the first 3-4 weeks depending on your dr, so edibles should be broth, or creamed Soups, no sugars etc. if I were you I'd tweak the directions of food for the edibles to be right so you don't cause any leaks with solids etc. maybe some in tea. Even the Vape may cause some issues so for while your stomach is healing from being cut by 80% and that removed and while your staples and stitch is healing to stay clean and then talk to your dr tell the dr so they can help you incorporate it back into your regiment. But that's my opinion always check with your doctor.