Yesterday-sick day

Yesterday I wasn't feeling good at all, I think I had a 12hour flu bug. I decide to sleep the day away, which later through off my night schedule sleeping and that sucked. Around 3:00 p.m I was downstairs in the living room watching TV with my dog Oscar and then out of no where I herd someone walking down the stairs. I thought I was the only one home at that time so I was freaking out and started screaming "whose here?" Two seconds later my sister Savannah starts laughing, I do not find this funny at all. I calm down and then she explains to me how she is sick with the flu also and got sent home from school