Constantly Thinking Disorder: is it a real thing?

A lot of people think continuously. But you know, most of the things we think about are not going to happen.

Not according to the "Diagnostic and Statistical Manual of Mental Disorders" published by the American Psychiatric Association. However, there are several clinical disorders that involve "overactive" or disproportionate thoughts. I myself have trouble slowing down my thoughts. The important thing to remember is that disorders are persistent, abnormal (as in 'not the norm'), and disruptive. If you feel your life is impacted by overactive or constant thoughts that you cannot stop, you might want to seek professional help. Don't "self-diagnose." If you already overthink things, you are not doing yourself a service by overthinking your own overthinking! Read a book, focus on a hobby, talk to a friend. If you are really worried, reach out to a psychologist/psychiatrist/therapist.

No it isn't because everyone is thinking all the time anyway. If it is negative or worried panicky thought than anxiety or stress may be the issue but everyone thinks

Sounds like a manifestation of anxiety, and possibly related to Obsessive-Compulsive Disorder. A lot of the anxiety disorders involve some degree of "mind noise," for lack of a better term. It can get to where you feel like you just can't shut your brain off. It can be really frustrating to deal with.

I personally believe so, and I even think I may be sufering from it as I am thinking 24/7, and has no to little controll.

Yeah can be, there are people who think alot even for small things ,it's alright but they need to learn to calm down and enjoy life :)

I don't know the answer to that and not a person qualified to answer this so please take the following with a pinch of salt....what I do know is the voice is in all our heads..don't worry but try to find gaps of pauses, it's about learning to focus...its hard we've been used to this voice all our lives and now we want to tell it to stop......good tips....sit in a quiet place with no distraction, a park, a green environment or even your room with no distractions (No phones or tv switch everything off)....and just focus on yourself, your body etc. do this every day for 1 minute...eventually the voice will come back and your mind will wonder again...when you realise this come back to the thing that you were focussing on). do this every day, eventually, you'll start seeing progress...best of luck to all of us with this

Not to my knowledge however you may be experiencing overthinking which, although not a medical disorder, is quite a tricky phenomenon to deal with. Just try to handle what is within your control.

Eating disorders are real and serious. It's not that someone just doesn't want to eat, or they could keep it down, or that they just eat too much. Eating disorders are actual problems that people deal with. If someone wanted to eat more, keep it down, or not eat so much, I'm sure they would. People with these disorders are not alone and can be helped.

Constantly thinking disorder is real but would be called an anxiety disorder with constantly thinking being one of the symptoms of an anxiety disorder.