Thanks for posting your query,
It seems to me that you are in the recovery phase of a stomach flu
I suggest you give a couple more days for the recovery to complete.
Drink much fluids, eat much and have some more rest.
If you continue having the same symptoms after a couple of days, I suggest you book an appointment with a doctor for proper review and maybe subsequently some treatment.
If your condition is caused by virus, then it will pass, but if other microbes are responsible, then it will be required that you get some blood tests and stool exams to eliminate stomach microbes (bacteria, protozoa, parasite etc).
Hope this helps