Is it possible that intrusive thoughts that can be hidden urges or desires

I don’t know how to explain this so I’ll do it to the best of my ability. Does anyone experience “co-intrusive” thoughts that try to negatively support the initial intrusive thought? Example: Me: “Thank God I never acted on (scary intrusive thought) & I’m getting better!” Intrusive thought: “What a shame you didn’t” These types of things send me into a spiral. It makes me think that it could lead to a desire instead of staying a fear. Like an intrusive disappointment that I didn’t follow through with the thought? It’s been a long fear/obsession & I think my OCD is trying to trick me that the only satisfaction would be to act on the thought. (I know that’s bs) But IS that why it sends me the negative co-intrusive thoughts? That’s the only explanation that makes sense. Then I wonder is it something else? Am I a grenade waiting to explode??? I simply cannot relax in any moment because I think what’s the use if I’m just going to (xyz) one day?

Earlier I had what felt like an urge but I’m not sure. I’ve had urges before but this felt different as the object was in front of me (not intentional btw) , I’ve been quite stressed lately and my OCD is latching on to that. I had an urge to harm and within that I had like 2/3 intrusive images that came to mind, I couldn’t rationalise with it, I felt “stuck” when I came out of it I felt scared immediately was trying to work out why I’d even think of doing that & was very upset. A while after I keep getting thoughts like “say your goodbyes it won’t be long until you act out” I cried to my boyfriend and told him everything. How do I know if this was intent vs intrusive urge?

I wanted to ask if it is possible to purposely think of an intrusive thought and then shifting your mind instantly to something else? Is it still an intrusive thought if you have been thinking of it 'purposely' for a second? I dont know how else to explain it, but it felt like I was purposely thinking of it. Anyone else had similar experience what happened during intimate moments like masturbation I feel so ashamed cuz the thoughts are so bad they're either about family members children and stuff like that it feels like I think it I just want to know if I'm not alone I feel like a monster because it feels like I thought these things or like I did think these things and I don't know what to do I feel so ashamed and grossed I need help I just want to know if anyone had a similar experience to shed light on because I don't know I feel so isolated