Waking up scared of yourself

Sam wasn't out long but when he came to he felt his face first and thought it doesn't feel different but then realized his size had changed not really in height but in pure muscle content he probably gained 30 pounds in muscle on his frame or more he felt so much stronger and his mind was so clear everything just making sense all the sudden he slowly stood up and could see himself in the mirror again now marveling at his new look he had been away from home over the summer working on an oil platform and had just returned the day before now looking around he wasn't at home but at his aunt and uncles house he had gone there before the library to drop off his bags after getting off the bus from the airport they weren't home and he was welcome to stay anytime even when they were away he stayed there once or twice a week when they would go away for long periods so he thought that was why he was there that morning he took a quick shower got dressed and grabbed his bags they were so light now he could carry them all with him at once he struggled and had to carry three bags one at a time on the bus ride here and into the house now they felt like hardly anything weight wise he grabbed all of them and headed to the garage threw the bags in the back seat of his car opened the door to the garage and got in his Toyota truck started the engine and pulled out stopped closed the garage back up then started his drive home about 25 miles away to see his parents

He was totally perplexed how he got so strong overnight and knew things he never understood before like highly difficult physics calculations like he was possessed by Einstine and Swartzenegger mind and body he wasn't complaining so much about the benefits but about how he had got this way he had never worked out but he had always been a fast runner more on the distance side than sprinting but fast he felt faster now than he had.