I Believe In Ghosts

Dunno if im crazy or what.. But after a few days ( a weeks ago) of drinking i rode my bike home at 2 am and i swear i saw something (in all black , no face) following me home everytime i looked back for cars and turning into alleys... Once I got home i sat on the chairs in the back and that thing was sitting beside me at the table , i threw water its way and it disappeared. Later that night the fire alarms went off at 3 am just as i was falling asleep. I decided to gtfo outta there and went for a bike ride around the neighborhood. Just a week earlier i was watching tv with my mom and out of nowhere we heard the sink in the bathroom turn on.. Some scary shit when you experience these kind of things in person lol..