You are a Diabetic with irregular heart beat.
Sometimes you have Bradycardia(low heart rate
less than 60 beats/min).
Sometimes you have tachycardia(high heart rate more than 100 beats/min)
You are arrhythmic.
Due to longstanding diabetes
you may be suffering from autonomic neuropathy and diabetic cardiopathy.
Cardiac evaluation by a cardiologist is adviced.