You're an elderly diabetic with Coronary artery
Had had Ca Prostate
for which you underwent surgery.
Now you're complaining of uneasiness in the evening.
You are on OHA's.
Your FBS is bit on the higher side. HbA1c is not controlled well.
Uneasiness may be due hypoglycemia
or cardiac cause.
Evaluate your renal function also.
Considering the age you may go for insulin