You wake up after a dreamless sleep. Not fully recalling yesterday's events, you wonder why your sleeping in the buff. The first thing your eyes see is a hairy arm in bed with you.
Thinking there's an intruder you jump out of bed, but the arm moves with you. Suddenly everything comes flooding back; the package with its leather contents, your change into a hairy hulk, and your belief that it was drug-induced.
"What am I going to do? I can't go outside like this, I don't know if I have any clothes that can fit me now." It's the weekend so you can get away with hiding inside for the next few days. You could always claim that you have a rare condition that caused your drastic alteration.
You decide to spend the day trying to adjust to your situation. You return to the bathroom intending to shower. As you wash yourself you gain an appreciation to how hairy you are, you shampoo your chest and back for the heck of it. Washing down below leaves you in awe of how hung you are.
After cleaning up you decide to shave. The body growth can be explained away as unusual bloating, but a bushy beard can't grow in the space of a few days. You raise scissors to your beard, trying to thin it out first. For some reason, you cannot bring yourself to remove it. An urge demands that your face stays hairy.
Giving up, you go to find anything that will fit you. Luckily you remember you have a pair of oversized sweatpants (SIDENOTE: aren't there always large conveniently located clothes for these situations?. You take an old undershirt and decide to stretch it over your chest. Hair pokes out from below the collar and the fabric only highlights how round your gut is, but at least you're clothed.