It's alright, I'm glad I'm helping. xD Yeah, to create a temporary account, just create another account, with another e-mail since you can't have two accounts with the same username, and then delete it if you wish, or just leave it there in case the problem happens again. It might happen a few more times, since it happened two days ago too.
It's probably not your computer. No problem, and good luck. PM me if you need help again. c: