I'm sure you are working very hard and it's exhausting!
I would say it doesn't matter if you believe the thoughts are part of the OCD or if you worry they are real. Naturally you do worry they are real of course because that's what OCD does. That's totally expected right now.
But supposing you have an intrusive thought and think "I picture this thing in my head so maybe that means I did it and it's actually a memory that I'm seeing; or at least the fact that I pictured it might mean that's what I secretely want" etc! You will notice all the fear and panic and shame washing through you, for sure.
Just try at the same time, to make a little tiny space for analysing what the thinking processes would be an example of if they were OCD.
In my example, starts with the intrusive thought.
Then it proceeds to some thinking errors around that. Ones I could potentially spot here would be:
Thought action fusion
Thought event fusion
Emotional reasoning - I feel bad therefore it must mean something
Other ones to look out for in general:
Catastrophisation - if I did fancy this person a bit then that means my marriage is over etc.
Magical thinking - if I picture this image again before 430, it means my marriage is going to end in divorce
Exaggerated responsibility for others
Perfectionism
Finally you may proceed to some compulsions e.g.
Checking- maybe checking your diary to see what your were doing that day, scanning through memories
Reassuring yourself or seeking reassurance from others
Try to stick a label on all the processes, whether you believe they are really ocd or not.
You don't suddenly feel less anxious through doing this but, if you try to become a bit of an expert at pattern spotting and labelling these components, your brain is ultimately going to reprocess this stuff without you really knowing and one day you will realise that the image that popped into your mind, didn't really bother you as much as before.
Also, try and do nice things for yourself, even though you really don't feel like it just now.