Hello There,
We can not consider any diagnosis just by saying 'Fever from Inside' and 'little yellow Urine' . You need to monitor your body temperature with Thermometer daily. If its exceeding above 98°F then its quite serious. Little yellow colour of Urine doesn't indicate anything. You need to do 'Urine Routine' lab test.
Next Steps
Visit to your Family doctor for thorough clinical examination and Diagnosis, Treatment .