How do you feel when you are about to have a nervous breakdown?

Although not a medical term, the phrase "nervous breakdown" is often used by laymen to describe a sudden and acute attack of mental illness—for instance, clinical depression or anxiety disorder—in a previously outwardly healthy person. Breakdowns are the result of chronic and unrelenting nervous strain, and not a sign of weakness. Like any machine, the human body will start to malfunction when put under too much stress.

If you're not sure that you're having a nervous breakdown, ask people around you if you have been acting strangely; not making sense in conversations, and talking either very fast and incoherently, or very slow in monosyllables.

I think with anything like that ( and I've been there) you probably won't realise there is something wrong until someone points it out to you.

Goodluck.

I have tried to find that answer myself without luck. I may be wrong but I think it is an expression and not a medical term. Mental health medicine is somewhat a new field and the expression came into being before what is now known. It may mean someone has lost the ability to handle stress any longer or the first signs of mental illness has shown up.

Out of control.

Like the world is on your shoulders and your about to die. It feels like getting hit by a car. ( not my analogy)

Jittery, anxious, chest pain, palpitations, and many others. It won't kill you but will definitely trick you into thinking you are dying.

you cant focus on anyone one thing ther is just too much pressure and you sleep all the time.

quiet and non exsisting

like you have no control. you panic.