Read the following article and answer the question.

Today is probably the last sick day for me , feeling sooo much better . : ) Anyway , today I woke up around 9:30 only to find my sister was home too , cause she is sick ( I swear Bronchitis is NOT contageous ) . Oh well , she is quiet and not annoying when sick , so it is alright . Woke up , and went to the toilet , only to find my sister ( most likely ) had left fucking piss drips on the toilet seat . I hate that . Then went to make weet - bix .

Why is the narrator not at work today ?
They are recovering .