Does this look familiar

Hi guys so i have been suspecting sibo for the last months , But to be honest i can't access a test , so i would need a turn around, the doctor already gave me some pills of Rifaximin, but to be honest i don't want to take them just now maybe later because i can't deal with the diarrhea the pills gonna cause me , plus i have lots of gas so , i would need a patch to this , Concerning my symptoms: I actually have lost of gas My stool is just not formed as it supposed to be it looks like Danette (brown) I already took some probiotics and they made me really constipated so i just had to stop taking them. My other symptoms are mainly having reflux , Gas Too many gas that it makes sounds while moving inside Also the acid reflux just effects my throat so i can't swallow normally Any helpful tips concerning the side effects of Rifaximin?, also do you think this sounds like sibo or something else