I have a chronic cough. i went to two different hospitals but they can't find what i have said that blood is normal. some people tell me that it's psychological cough. ?

Causes of cough: A chronic cough in someone your age can be caused by many different factors. I assume you are not smoking any substances and if you are, I would stop doing so. Some medications can cause a cough. This also could be a sign of allergies so allergy testing might be helpful. You should also have a chest x-ray and a skin PPD test. If the cough persists I would consult with a pulmonologist.

Cough: I don't know why you have a chronic cough. Cough can be a symptom of anxiety. A cough can also be a tic.

Psychosomatic?: If all physical causes have been ruled out it’s possible your cough is psychosomatic. People misunderstand this word and think that it means “it’s all in my head.“ Actually, psychosomatic effects (positive or negative) are due to the incredible power of the mind. Some yogis can slow the pulse so that it is undetectable. Immune system can be boosted, blood pressure reduced, all by the mind.