Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain fever can be seen in case of
bronchitis also while diarrhea can occur due to side effects of medications or can also be due to
stomach infection.
As he might be still taking the medications and is recently being relieved from infection, the symptoms of weakness can take some more time to resolve..
I would suggest that he should continue taking the medications advised to him as they are appropriate and along with it take a
soft diet and drink plenty of water..
Take sufficient rest and avoid exertion..
In case if the symptoms does not improve in a week
consult a Pulmonologist and get evaluated and he can advise you chest x ray and blood tests in case if
Pneumonia is suspected and can treat you accordingly..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.