Hsve you tried the fennel tea for the gas? Make sure the tea you use has a high volitile oil content like Heather's.
You need to slowly and safely incorporate IF with every meal. For example make sure the fruit smoothie has a banana in it, and add one fruit, maybe two to see how you handle it. For lunch, incorporate some kind of IF vegetable with a SF base. Have a few pieces of pineapple or cantaloupe after your regular breakfast.