Hi, welcome to our site. I am Dr Saumya Mittal.
Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query
Yes. you may have cold. what happens is that you may develop
sinusitis along with the cold. this may cause
headaches,
vertigo,
dizziness. the nausea may be associated to the headache and vertigo or may be a part of the viral illness. likewise for the
diarrhea. the weakness can be explained by the viral infection too.
so overall your symptoms can be explained. however i cannot possibly make a comment if your doctor is right in the diagnosis.
i would suggest you get an x ray pns waters view
I hope this helps you. Inform the reports mentioned above so i can be of help further. Best of luck.
I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you.
Please do understand that some details could be extracted from a detailed history and examination.
(If the answer has helped you, please indicate this)