Well, the degree and severity of what you’re describing isn’t what most people experience, and it seems like it is at an unhealthy degree of frequency and severity.

I would say that anyone experiencing that kind of inner turmoil would benefit from evaluation and treatment. Trying to diagnose someone online is a sucker’s bet even if you’re a qualified professional, and I seriously doubt you’re going to find one of those here on lemmy randomly. But, yeah, if a family member or friend out here in meatspace told me they were experiencing that, I’d be helping them find either a psychiatrist or other mental health provider sooner rather than later.

Most people do experience at least occasional intrusive thoughts, but not to that level. It’s very good that you recognize it’s an inner voice rather than a separate source though. It does tend to mean you’ll respond well to one or more of the various treatment options, which will depend in exactly what the root cause is. Likely, there would be a combination of medications and talk therapy of some variation or another.

And, I suspect that even though most people need to try a few meds before they find the best options, that you will likely get relief quickly once that happens. So you’ll be able to approach other treatments and benefit from them quickly as well.