Im urinating every 3 hours wondering y it just started maybe about 5 days ago im prediebitic. but this has never happened before, no pain?

Frequent urination: Uncontrolled diabetes mellitus (common form) can cause frequent urination. So can (uncommon) diabetes insipidus. Urinary tract infections are typically painful. Diuretics (water pills) can make you pee more frequently but you're only taking metformin & lisinopril. Multiple vaginal births (not c sections) can increase risk for stress incontinence. Overactive bladder can make you want to pee frequen.

Frequent urinatiom: If you are pre diabetic, what you eat will affect the amount of sugar(glycosuria) that is excreted in your urine and may increase the amount of urine you produce(polyuria). You may need to check your blood sugar and find out whether you have become a full blown diabetic.