Seems like you have gastroenteritis with urinary tract infection.
Take a lot of fluids, Ors, continue the medicines and take rest.
If your fever is gone i guess you are in recovery .
But if you feel very dizzy and you are not taking enough fluids, it might be problematic as you are still having diarrhoea.
I would suggest if your symptoms are not improving, you can consult your physician again.
As far as the urinary tract infection is concerned, you are already on antibiotics and the frequency of urination takes time to resolve.however an anticholinergic may be added to decrease the frequency of symptoms.
Next Steps
consult to add anticholinergics.
Health Tips
consult ur doctor regarding your recovery and need for hospitalization.