I was ordered the SIBO tests (it consists of 2 tests, I believe) by one of my gastroenterologists at Duke. I have several. I have been under their care since 2022. I have had chronic constipation interrupted with incidents of diarrhea for over 2 years and a constant bitter taste since Sept 2023. Not sure if they are related, I have had no heart burn that I am aware of. I have had 2 normal colonoscopies, except for a few minor things. I wonder if I don’t have SIBO and this antibiotic is affecting something else in my body or I do have it and the med is attacking it. I have had no relief from this terrible constant taste for over 17 months, so I am desperate for any sign of improvement. Oh, the constipation is currently resolved and no diarrhea either. It’s been that way for a couple of months before I started the antibiotic.