^^ agree, even if you were on an AAS cycle it would be impossible to put on 15lbs in two weeks of solid muscle. There is a chance you were glycogen depleated prior to this, and that would account for some, and if so there is a lot of water wieght that would come along with that too. So it may not be all fat, but a combo of fat muscle, water and glycogen ... but its tough to say.

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