Diabetic with Abnormal HbA1c - Should I Follow Doctor's Advice?

I am 71 years old man. I am diabetic for the last 4 years. Strict dieting helped me to reduce my sugar level. The diabetic medicine was also reduced. For the last 4 months, my fbs and ppbs are in the region 120 and 190. During the last four months, I am not taking any diabetic medicine with the permission of the doctor. Presently my Hba1c is 5.8. Now the doctor is insisting that I should again start the diabetic medicine JSITA-M 50/500 since my ppbs is high. I feel that I should not take the medicine since my Hba1c is normal. Kindly suggest whether I should take a second opinion.

Iam a diabetic since 2022 sept hba1 c was 10.2 doctor prescribed volirapid 3/1 2 times a day and siaglide 50/500 after 3 months seeing my hba1 c 5.7 he now has told me to just take 1 tab voglirapid per day my fasting sugar se between 90 and 98 random 120 to 130 can i stop taking medicines or i should take it life long

I am 54 years M ,having Diabetes and High BP (HTN) since the past 13 years. At times it has been in poor control also like in May 2021 the HbA1c was 10.10 which gradually went down to 7.70 and then remained constant between 7.90 and 8.10 with the medications and 'not so strict' diet regime. Plus the body weight was also increasing and i gained around 10 kgs (101.2 Kgs) in a span of around 06 months. Recently in March 2024, the test reports indicated it as 8.70 causing me some concern and in April 2024 the reports showed a value of 9.20, which made me think about the reliablity of Lab report as well as made me change the doctor. My medicines were changed from Glimepiride (2 mg),Metformin (500 mg) Pioglitazone (15 mg) and METFORMIN-500MG + VILDAGLIPTIN-50MG twice daily ( taking for about 20 months) to GLIMEPIRIDE-2MG + METFORMIN-500MG + VOGLIBOSE-0.2MG and Dapagliflozin 5 mg+Metformin 500 mg twice daily recently in Mid April 2024. I was asked by the doctor to report after a month with Fasting and PP readings. However after few days,I started realising that my blood sugar was approaching higher and then I experienced needle like sensations in feet and hands plus sticky urine with a heavy head and hot face. I again went for a checkup three days back and the randomn sugar was 291 mg/dl. The medications have again been changed to Dapagliflozin (10mg) + Metformin (500mg) + Sitagliptin (100mg) + Saroglitazar (4mg) in the morning and METFORMIN-500MG + VILDAGLIPTIN-50MG since yesterday (08.05.2024) and I have been asked to take daily readings and report after 10 days. All this has lead to a panicky feeling in me, resulting in increased HTN. I am worried that how this hit and trial or permutations and combinations will help me in achieving a perfect set of medicines to lower my blood sugar to normal levels. Kindly advice. I shall be highly obliged.