Thank for asking to HCM
You already have history of CAD, done angioplasty
, so the resent history of back pain
can not be taken lightly or underestimated, for that the possibility of posterior wall of heart should be look for ischemia, I think the best way is angiography
and Transesophageal echocardiography
(TEE) to rule out this,, the possibility of this is just likely, have nice day.