Could my test for Chlamydia give me a false negative?

Well.. they(dont remember the university name) made a study about chlamydia on mice, and they found out that chlamydia can return by itself and they say the same is happening on humans. Chlamydia besides living in the reproductive organs, lives in the gut as well, so you get your treatment to get rid of chlamydia and it clears everything down there but you can get reinfected a few days after and all by iitself because it was destroyed on your reproductive organs but not in your stomach. I know this is really scary and i hope this is not true in humans even though it was true in mice. But this is the only explanation why your infection was gone and then it came back without you having any kind of sex relation with a person positive for chlamydia.