Navigating SIBO Care

We are contacting you about our 19-year-old daughter who has been diagnosed with SIBO, many food allergies/intolerances, and possible celiac. Her symptoms include a bloated, full feeling after eating small amounts, extreme fatigue, brain fog, depression/anxiety, and continual congestion, among others. We are currently under the care of a functional medicine practitioner who has her on a very restrictive diet, supplements, and homemade yogurt that has specific bacterial cultures. We have seen small improvements and some minor gains. She has had tons of lab work panels drawn, etc. Through social media and friends, we were curious if Gary and his team may think she is a candidate for his genetic testing and/or if they have any ideas on what may be going on with her body. She's a smart, athletic, fit young woman, and we just hate to see her teenage years being affected by whatever is causing all these symptoms. Any help or information you may have would be greatly appreciated. Thank you in advance.