Are fetishes/kinks related to nonsexual trauma?

So last year i lost my father, and right after that i noticed that i was strongly attracted to thighs, which is something that never happened before, i even could not understand how people would like thighs so much, but now I DO!
This year i lost another important person to me, it shattered me, and guess what happened? ANOTHER FETISH!
This time, it was armpit fetish.
Neither of these traumatic experiences are sexual, and they still made me like things I never thought i would like before.
Did that ever happened to you before? What could be the reason?
Ps: please do not try to make my losses look stupid just because of the fetishes, I didn’t talk about the pain because it’s not my focus point here.