Can you will yourself to die as I do not have any physical problems Is it possible?

If you are healthy then no. If you are very sick then yes you can. I work with very sick patients all the time and it is my experience that if they don't want to get better than they don't get better. (I'm a doctor) Although it can be seen with less serious implications. It is a very interesting idea. The thought to will yourself to death is easily justified by the fact that you could simply stop yourself from supporting your life. But there are 2 types of actions. Voluntary actions and involuntary actions. Unfortunately for some people life support is a involuntary action.

Then there is another interesting idea that I have not confirmed myself but are willing to throw it out. It may be possible to whilst fighting some kind of health risk such as a disease to stop living. It may not be a sudden as you could try to imagine but maybe if you stopped trying to live you might die slowly? This question is all based on the will to live as some survival experts like to refer to (WTL is easily linked to survival). Anyways willing yourself to death is rarely a good decision like suicide so please don't try either.