Jeff absolutely catastrophized his voice dropping, his parents were actually the ones to give him the most grief about it, after a few days it was old news and much to Jeff's surprise, he wasn't bullied by any of the guys about it. Even the guys who were less than nice to him didn't pick that to pick on him for. It could just as easily happen to them and although he was surely being talked about, it was in the context of how jarring the situation would be to go through rather than him being a freak. His classmates were being empathetic rather than mean.
Jeff's temperature cooled down, bringing his human form back down to 98 degrees. The changes were no longer systemic, his body wasn't fighting an infection, and keeping him 4 degrees hotter was wasting calories that could otherwise be used to fuel strengthening the host for spreading the disease.
By the middle of the first week nobody had noticed Jeff had grown several inches, his insane consumption of calories has, and will continue to, promote the abnormal growth to a very adult size and build. The Chronivac was effectively hiding this by altering his clothes from M to MT. Jeff was already on the cusp of L but will eventually reach LT/XL and possibly XLT as he grows.
By the end of the first week Jeff's facial and body hair had been showing signs of being activated. Hair has phases, so it is taking a bit of time to coax it into growing normally, but by this time next month Jeff will realize he really needs to shave daily to not be mistaken for a senior. I'm getting ahead of myself. (Other dimension scientists are still trying to determine if its the enhanced blood flow, the increased root size, or if the disease does something specifically to prematurely activate the androgenic hair which happens across genders but is much more obvious in males.)
Jeff's growth slowed after the first week, specifically his height. Honestly, if it wanted to, the disease could make him 6'6'' right now, the foundation for that was already in place, but no. The disease came from a strain that 'knew' cycling between height and muscle tends to be better for propagating itself effectively. Scrawny tall werewolves handle obstacles less effectively than average height but brawny werewolves.
Jeff was finally able to take a step back and resume his life when the weekend came... to him, it felt like last weekend didn't exist, he was sick every evening, Last Saturday he only saw his friend for like an hour and then had to stay home all afternoon followed by feeling ill, and Sunday was just a long hallucination. For Jeff, its been two weeks of wake, school, homework, bed, repeat.
Jeff went back to the Chronivac Saturday morning and made a small tweak to his running package, It alerted him that he was "on track" to reach all his goals and he chuckled wondering how it could possibly think that... Sure, his voice dropped apparently due to the package but everything else? A week had gone by and he looked the same aside from a few hairs on his jaw... (again, nobody noticed his increased height due to it not impacting the fit of his clothes, and Jeff doesn't check his weight daily.)
Jeff went back in and increased his knowledge. It was something he was waffling over when he initially set this up, and since he originally was planning on making this take two years he didn't want to become a nerd... but 2 months and few weeks to become super knowledgeable? Yeah! He could take that. He clicked accept and on a whim reduced the timeframe to 2 and a half months, after a moment of calculating it again said "on track" then he went back and set it to two months... the same message appeared. He tried 1 month and the message, "Likely to miss targets." appeared. After much trial and error he got the anticipated timeframe down to one month, three weeks and two days that he was still "on track" so he left it there completely perplexed as to what was going on.
His subconscious had been dealing with the fact that he came home bloody, said he was attacked, and didn't remember it. Nobody would handle this well and these thoughts toiled in his mind all week eventually sparking the urge to work out based on the idea of being able to defend himself. The nebulous concept came out just like that, "Hey dad, I want to work out." when he went to his dad Saturday morning. Old weights dragged from place to place since before college, were salvaged from the garage and then became Jeff's. 2 10lb and 2 15lb dumbbells. It's not going to make him win Mr. Universe but a good place to start.
Jeff watched some youtube tutorials on how to start and what to focus on and he began working out... His workout would have normally been entirely ineffective yielding almost no visible results until he got into higher weights, but the lycanthropy wanted him to become a brawny werewolf which means he needs to become a buff man... his pathetic and erratic beginner workouts did manage to stimulate his muscles just enough so that the disease could force his body to use it as an excuse to move things around just enough to be less severely injured during his first full transformation.
Jeff did gain weight rapidly, but not in a visibly obvious way. Several layers of cells surrounded all his bones and began storing nutrients for bone creation. Anticipating muscle repair, the cells surrounding his muscles which serve this function, divided extensively. Not to mention his cardiovascular system having already changed in size and volume, made lots more red blood cells allowing the system to dilate which accidentally flooded him with oxygen in the middle of English class and effectively got him high until his body readjusted.