itself is a risk factor for UTI. Stone in urinary tract
may cause pain,bleeding and recurrent UTI. UTI can occur due to various bacterial infcetions, of which E. coli is most common. In diabetic person there are chances for fungal UTI also.
So I would suggest you to go for urine routine, microscopy and culture/ sensitivity. Also get an ultrasound
KUB done to rule out stone.
Be in touch with your physician for tight control of blood sugar.