My pc goes bad :(

I like a loot to be hanging out in my pc with some internet web pages like youtube, twitter etc etc, I spend a lot of time seeing some tutorial videos about songs or experiments, also with twitter tweting some interesting twettts haha :D! but one day I was on youtube seeing videos and outside it was a horrible storm. So a thunder come and makes a lot of noise and when I return to my pc my pc doesn't work anymore :( I don't know what happened but I'm so sad because it :(