Disturbing Intrusive Thoughts and Seeking Help

[TW!!! talk of gorey thoughts and self harm] I'm having really disturbing intrusive thoughts .. I've had them for years but they're getting more frequent and disturbing... usually gorey things I'd never ever want to do like biting my cat's face off :( I want these images to go away.. I'd never hurt my cat ever and I had one of biting my mom's eye ... it's scary and I want it to stop ... I'll also have them of cutting myself.. sometimes I have thoughts of that for other reasons but I don't go through with it and it gives me a weird feeling in my arms like I feel weak and scared... before when these started it would only be about hurting myself such as stabbing myself in the eye with a straw.. but now it's about others too and I'm scared .. I don't ever want to hurt anyone and I don't think I ever will but I don't want to see these things either ... I'm not diagnosed with OCD but I'm wondering if I should see a therapist about these symptoms.. I do have autism and tourettes so it's likely I may have it aswell.. but it will be awhile since my last therapist dropped my case