helmet stress

I am not very healthy recently, so I went to see doctors quite often.


The syndrome I am having are headache, dizzy, heat and shoulder stress.


I was told that I am too stress, the sickness were caused by tension. The feeling is like wearing a helmet on your head, heavy and stressful. The doctor call it tensional stress or "helmet stress".


Another friend of mine is also sick recently. He has got skin allergy. And after seeing 3 doctors, all 3 asked him whether he has been too stressful?


Since when stress has become the cause of all sickness?