oh my gosh similar thing happened to me what city do you live in i was losing weight lost 50 pounds . did my research listenen to podcasts . Dr told me i should stop reading . asked him to refer me to one of his colleagues who did breath test he refused. Since he is a big wig in this are and many of the gastro practices are under one corporate umbrella no one else wanted to see me.
Went to john hopkins wasn't impressed with person i saw but she did write Rx for breath test. Came back positive took anitbiotics for 2 weeks better for short time then came back even though i was following SIBO diet. Went to Mayo they did endosocopy took fluid which showed i had SIbo still . Another round of Antibiotics. just finished my third round. have lost almost 60 pounds. I do also have cancer but two oncologists say weight loss is not from cancer. Life has become very difficult. wondering how your wife is doing. ?