Hello, thanks for the query to H.C.M.
if 60 & regular means nothing abnormal.
Sudden increase in heart beat without any stimulants or provocation is a cause of concern.
This is a clear indication pointing towards a heart disease
When some stimulants ( as in excess amount of coffee you had earlier) present in body due to any reason, has been associated with increased risk of coronary artery
disease via elevation of lower density lipoprotein
Earlier oily components of coffee were responsible for this condition.
Now these are itself in body
So please don't take it lightly and get in blood examination for LIPID profile
and deal accordingly.
Regards. Dr. HET