Texture

by alex
(united states)

i am here from my research. i have recently been googling what i feel is strange about the way i deal with textures and certain noises, and i found this.

my problem is this: whenever my fingernails scratch a certain rough surface or i even think about scratching a rough surface, i get a strange feeling in my fingers and i feel the urge to scratch something smooth. this urge doesn't go away until i scratch a smooth surface. i don't know if this is normal, but i don't think it is. someone close to me told me i have spd, but i am not convinced.

i do show a few symptoms for tactile defensiveness, but nothing major. should i see a doctor or specialist or is this normal?