Need a few more details please consult for further evaluation and treatment

Detail history required for recurrent UTI. Urine Culture and sensitivity test should be done. If your HbA1c level is normal, fasting glucose level should be done. And other relevant test should be done as per advice for recurrent uti. Di consult and proper follow up needed.

In your case with normal HbA1c and RBS but weight loss, recurrent UTIs, dry skin and tinnitus, C-peptide is generally more informative than fasting insulin because C-peptide is more stable and directly shows how much insulin your own pancreas is making - low means low reserve as in Type 1/LADA and high means insulin resistance - while fasting insulin is highly variable and mainly used to calculate HOMA-IR for insulin resistance when sugar is borderline high; so if you can only afford one, ask your doctor if you can do fasting C-peptide with fasting glucose instead of fasting insulin, but if cost forces you to start with fasting insulin alone it is acceptable as an initial screen and you can add C-peptide later if it is abnormal or if weight loss continues,

As such you are young, Hba1c is normal,  chances of diabetes are very less. Get urine microscopic, culture, thyroid function tests, cbc, done to exclude any other reason for your symptoms. C.peptide levels measurement is slightly more accurate tha fasting insulin levels.

These test not required. I

Do consult

With normal HbA1c and random glucose these tests are not necessary please book a consultation with me to review your symptoms and reports so we can prioritise only the investigations that are necessary

kindly do connect and consult with me for better treatment plan and advice on your case via PRACTO app

Hello, This tests are not required Take Balanced diet. For diet details and ePrescription consult by practo app. Thanks.

How are your other tests such as CbC, TSH?

Normal HbA1c and random blood sugar are reassuring, but unexplained weight loss and recurrent UTIs warrant further evaluation. I would recommend consulting  before choosing either test, as the appropriate investigation depends on your symptoms and clinical examination. Depending on your history, repeat blood glucose testing, urine examination, thyroid function tests, and renal function tests may also be appropriate. Please don't delay evaluation of unexplained weight loss and recurrent UTIs.

Okay, While you are 29 Years old and your HbA1c and RBS are normal so less likely to be Type 2 Diabetes Mellitus. For recurrent UTIs do CBC,  Urine microscopic and culture sensitivity. You can do Insulin Fasting but C-Peptide is more reliable and useful for diagnosing Type 1 Diabetes Mellitus.

Get fasting insulin done

Hello, I understand your concern regarding the cost of investigations. Fasting insulin and C-peptide measure different aspects of insulin production, but neither is routinely necessary to diagnose diabetes. Fasting insulin: Primarily used in selected metabolic or hypoglycaemia evaluations. C-peptide: Helps assess the body's natural insulin production, particularly when distinguishing certain types of diabetes. Since your HbA1c and random glucose are reportedly normal, neither test is necessarily the first priority. However, unexplained weight loss and recurrent UTIs deserve further evaluation, even with normal blood sugar reports.

Can help you, kindly consult and provide detailed history for proper diagnosis and further management

With a normal HbA1c and blood sugar, your doctor is likely checking fasting insulin and C-peptide to see how your body is handling insulin before sugar levels actually rise. These two tests measure different things, insulin is the hormone level itself and C-peptide shows how much your own pancreas is producing, so they aren't fully interchangeable.