it appears as if you are not consulting a proper doctor.
Traces of sugar are normal and can be found in normal people also.
This should always be corroborated by getting blood sugar fasting and PP levels estimation done.
You require a consultation with an internal medicine specialist and a thorough investigations like hemogram,chest X -ray,tests for malaria
,blood and urine culture and ultrasound
treament would be easy once the cause is found.