Is it normal that i apply pressure to my fingers?

Sounds really weird. I have been doing it for about 5 years now. I have longish finger nails. I like to take my fingernails and add pressure or glide (with pressure) my fingernail on (mostly) my thumbs. Its hard to explain, I like to put pressure at the tip of my finger (mostly where my fingernail starts to grow) under my fingernail. I also have to do it with my toes.