I am a type 2 diabetes.I am taking Lipitor once daily,APO - lisinopril 5 mg half tab once daily and Avandamet 2/500mg twice daily.My blood sugar ranges from 5.0 to 7.5.,but lately my blood sugar went to 8.5 and they found a protein in my urine.I would like to know what causes protein in the urine ,and how to prevent it.