I have a burning sensation in my chest, similar to when I was diagnosed with diabetes. Why?

Hello doctor,

I am a 65-year-old male with type 2 diabetes mellitus for more than a year now. I do have prostate enlargement (1.14 oz), for which I do not take any medicine as I experienced a sudden sweating episode in the morning after I took medicine for two days. I got my electrocardiogram done soon after this, and it was normal. I do not have any major complications because of this. I am a chronic patient of constipation, for which I do take laxatives like “Zandu Naytem “ three times in a weak. My HbA1C (hemoglobin A1C) has surely come down from 11.3 to 6.2. I was on Genumet 50 /1000. Now, the doctors have put me on Verifica M 50/1000. I received my first cover shield three weeks back. I did not experience any adverse effect except a mild fever on 2nd day after inoculation. For a few days, I feel a mild burning sensation in my chest with a bit of pressure and pricks occasionally, the symptoms I experienced when I was first diagnosed as diabetic. I also feel tiredness with light to moderate aches and stiffness of the back. What could it be due to? I am also sending here my recent blood reports for perusal and evaluation.