Hi

Am glad for your son to have such a supporting father. What he is going thru is his inability to manage stress in his job. his mind can't cope up with the pressure. so it starts to slowly build a set of reasons to convince himself that he is not fit for the job. it also wounds his pride if someone has to terminate him so he would rather quit on his own as it relives him of emotional pain.

the problem in today's world is everybody expects you to work hard and be smart irrespective of stress that it takes. so kindly explain to your son to take it slowly. explain his health is more important. make him take less stressful job if he can't handle the pressure.