what you are refering to is 7,17 dimethyl nandrolone
chances are what you took was not 7,17 dimethyl nandrolone,,if anything it was some sort of stimulant passed off for a steroid.
the methyl on carbon 7 prevents it from 5 alpha reduction...the methyl on carbon 17 makes it active by oral administration.
7 alpha methyl nandrolone is curently undergoing fda testing as a androgen replacement product for men with enlarged prostates. there has been no literature to suggest any "rage"