Are There Any Side Effects Of Taking Panadol?

I was really tired last night after working for 13.5 hours and took my partner out to have something to eat. I don't remember anything after ordering the food and woke up this morning in bed. According to my partner I started acting strange, mumbling, and eating really slowly. My partner drove home, I apparently had a really long shower and went to bed. I hadn't had any alcohol at all and had only taken 2 panadol. I'm female and 31 years old.