Hello and thank you for using HCM.I carefully read your question and I understand your concern.You shoud not worry I'll try to explain you something and give you my opinion.
Premature heart contaction are a rhythm heart issue. They are electrical impulses that generates in some part of the heart different from normal
sinus rhythm.You feel this like skipping beats, palpitations and
anxiety.
There are different causes of this rhythm issue like simple stress, coffee and alcohol consumption.
Pathologys like anamia,
hyperthyroidism or
ischemic heart disease might be other causes.
As you are a diabetic person it is very important to exclude ischemic heart disease.
So, if I was your treating doctor I will recommend some examination like an electrocardiogram, a cardiac echo to evaluate heart function and if it is possible a
stress test to exclude ischemic heart disease.
If it is posible after checking your frequencyes we can rise the dosage of your medicament up to 10 mg a day.This can better control the premature heart beats.
So I recomend you to do all above and discuss them with your doctor.
Hope I was helpful.Wish you good health. Best regards.