What you likely are experiencing is the meat feeding the candida. Beef takes longer to digest than other meats such as chicken and fish, and this can ferment in the gut causing ammonia production. Ammonia likely fed the candida which produced toxins that made you feel bad. I would avoid beef for awhile and eat only chicken and fish (or turkey). Avoid the beef and pork at all costs.
Check out the protocol:
For the gas problem, I take a supplement called Zypan which completely reduced or elminated my gas problems.