Can you have bronchitis but with no cough?went to hospital and diagnosed with it but i hardly have a cough.weird?

Possible: Usually bronchitis is associated with other symptoms. It's hard to have it without cough, malaise, fatigue, occasionally low grade fever. What are your symptoms?

Possibly: If there is wheezing and a history consistent with bronchitis then you may have it. Probably if it is left untreated for another week or so you will develop the cough. I usually do not make the diagnosis without wheezing and cough but medicine is an "art" and we all have our own way of doing things!