hello.see if your TMT or stress test
is positive then there is a definite thing to worry.you are also on antihypertensives on a fairly good dose and your lipid profile
is borderline plus your age.
your cardiologist has not prescribed you any of the antiplatelets for i think positive TMT test should not be taken lightly.
my advice would be you take a second opinion
of another cardiologist showing him all your reports of investigations.
you might need a further evaluation in the form of other cardiac tests, if required invasive tests.
do not worry as there is definitive treatment for every cardiac problem if diagnosed early.
hope i have helped you out.
all the best.