My school is located in Bulacan province. It was said that the location of our school was a cemetery before and then became a hospital, in which case ghost stories were widely spread in the campus. It was during our 3rd year high school level when this happened.
It is the policy of our school to wear white uniform every first Friday of the month for the monthly mass, but some students wear brown uniform because they claim that they had forgotten.
One Friday before the mass starts, the time was an hour before the lunch break, there were no students at the hallway because they are all at the court getting ready for the mass. I was on my way to the bathroom and when I was about to enter, I saw Melissa (not her real name), one of my classmates, exit the bathroom. She was wearing the white uniform. I waved at her and called out her name but she did not look at me and her head was slightly bowed but enough for me to see her face clearly. So I just didn't mind and continued to go in the bathroom.
On my way back to the court for the mass, I saw my classmate Melissa, and she was wearing brown uniform. I stopped to think of what happened and got scared, so I looked around felt a bit paranoid. I did not tell it anyone but only to Melissa. She got shocked and told me that she did not go to the bathroom until after the mass. I got scared for a bit but nothing bad happened to me so I guess it was just a lost soul roaming around the campus.
It was creepy and an unforgettable experience for me.