fmab is the マンガ faithful version of fma. The original アニメ went off on it's own course around the 秒 season and made up it's own story. FMAB is the マンガ driven version
Think あなた might be referring to FMAB which stands for Fullmetal Alchemist Brotherhood and that would be the 09 version of the FMA アニメ which is much closer to the マンガ compared to original version of the series.