When reading or studying something i am concentrating on how my brain works and how it is able to understand what i am reading or studying, automatically i am getting distracted from the reading or studying itself, it's a Somatic OCD... it's painful... Anyone to help?

Anyone struggle with this with having ocd?

Two things are happening: I get thoughts that just keep looping. They almost feel like song stuck in my head. Also, I’ll imagine something and I feel my stomach drop. Then as the seconds go by I keep getting fragments of the this thought but with different details. For example, it’s kinda like how a “vision” is portrayed. I’ll get a glimpse of the thought and then it’ll rapidly expand into something worse every few seconds. I don’t know if I’m causing this or if it’s just an automatic thing like any other intrusive thought. It feels unavoidable, idk if this is a compulsion or if it’s just another manifestation of an intrusive thought. Apart from that remembering an intrusive thought triggers the full thought again and then it just keeps looping or expanding. I don’t know how to stop any of this. Help?

please i need someone to share experiences... - that a certain facial expression of a person to whom ocd is attached causes a lot of thoughts that are connected to that facial expression, and that the images in your head are very detailed, and that they have a sound, words, and that you have a feeling of some kind of crawling from the groin all over your body?