eating towels?

idk if this is only me but i like to rip the strings out of towels with my teeth and chew on them. it got so bad when i was young to the point my family brought separate towels for me so i didn’t bite holes into one they would use for events (eg. the beach). i was speaking to a friend and she thought it was bizarre and probably a sensory thing- its been happening since the age of 9.

am i alone on this? or is it just the tism lol