I feel like I’m doing something wrong but I’m not sure

So I work with SPED & some of my kiddos like to be tickled. I typically tickle them by their neck and they laugh so much. I’ve realized how that can definitely be misconstrued. My lead teacher has seen it but has never said anything to me. I’ve decided I won’t be doing it anymore although it’s innocent and comes from a good place. Thoughts on this? I have anxiety so this thought kept me up all night!