You said that you were treated for a sinus infection
. Most common
drugs that are used are Azythromycin, Amoxicillin
. Amoxicillin can cause diarrhea and some nausea.
The others can cause nausea, vomiting and stomach pains as well.
It is possible that you are experiencing some of the side effects.
If you had the stomach flu
, usually caused by Noro virus , you can
have high fever
, chills, nausea, vomiting and diarrhea.
You mention being tired and also achy. This might suggest viral
infection. Try to take in small amounts of clear liquids evry couple
of hours and when you are able to eat solids, stick to a bland diet
for 2-3 days.
I wish you well.