y do i always loose size??

[Powerlifting57]

ok i take 10 grams creatine 3 times a week( lift days) i dont use it for size but strength i have tested sum things and found out the less u take the stronger i got but the more i took the bigger andf weaker i got!! no the span of 3 days i dont take it i feel small and weak!! is it just me or is it the creatine and lately i have felt small no matter what