A persistent intrusive thought

So, I get intrusive thoughts about various different topics. They can be violent and gory, sometimes downright ridiculous, or simply do not reflect the attitudes I have. I am aware that these thoughts do not represent me and I can often trace them back to where the thought originated from. Generally, in my case, the intrusive thoughts I have centre around morality. They are typically based on what I've heard others say (either directed at me, or someone else).

I understand that these thoughts are just a part of my life, but they can ruin my day for a couple hours or so and they can impact how I act when around others. Certain subjects are easier to push through than others, for example I can quickly dismiss my intrusive thoughts about going off the rails and becoming a murderer because I know that this is very unlikely to happen. That thought hasn't occurred recently as much since it has lost strength against me and stopped cropping up (except in the form of hurting animals or babies by throwing them into traffic, but I mainly just laugh at that kind of intrusive thought because it's so extreme and ridiculous that I simply reply to myself sarcastically 'ah yes, because that totally sounds like behaviour I would do').

Then there's the homophobic thoughts and the thoughts about body image. In my case, they are somewhat connected and I'll explain that. So, I have come across the misguided homophobic statement that gay people are actually just narcissists whom are attracted to themselves and this attraction to the same sex is an extension of vanity. Of course, this is complete nonsense. I know that. After all, I don't look in a mirror and find myself attracted to myself. Rather I just think 'Yup, that's me' and I am rather neutral to my body.

Yet it's a rather persistent intrusive thought that keeps cropping up and frankly I feel like yelling at it for not leaving me alone. It extends into other thoughts, such as having days where I am comfortable with having a visible chest and other days where I want to appear flat chested and don't even like to acknowledge that I have boobs. Fortunately for me I have a small chest, so I can easily switch between the two by simply wearing a looser shirt. Is this gender dysphoria or an extension of my intrusive thoughts? Who knows? Not me. Dear brain, could you just shut up for once?

...I just needed to express this.