Extremly high blood sugar. Guide me.

Hi Iam 36 year old male. From past 5 days iam facing frequent urination and drinking lot of water. Due to frequent urination it has disturbed my sleep and regular lifestyle also. Iam getting pain in my legs and specially calfs. I consulted my general physician and he asked me to go for routine urine test and blood sugar (fasting and PP). test number came too high. My blood sugar was normal till last i checked but dont know how it came too high. Urine test : Glucose - 4+ Blood sugar test: Fasting: 535 PP: 653 I dont know how it increased so suddenly. Although My father is diabetic. Please guide me what should I do. Are these number suggests I have diabetes now. Please guide. Iam on High Bp meds: Losar50 Natrilix SR please find attached the reports. Please guide me.