Is it normal that i watch other women poop and fart on the toilet?

Okay, so I hope I'm not the only one. I've read multiple posts on this topic, but I can't seem to find people who are into the exact thing I am.. I am definitely not into scat/smearing/eating poop... However, I get so turned on by seeing or hearing other women use the bathroom. I'm 19 years old and have been obsessed with watching videos of women either sit and let loose on the toilet, or have a bowel movement while squatting. I guess it's the sounds and farts that drive me.. My fetish has even gone so far that I imagine people in my every day life pooping. I also love desperation videos of people running to the bathroom or struggling on the toilet. This has been going on for about 2 years now.. is it normal?