Dear friend, welcome to HCM.
1 month is a pretty long time to adjust meds, esp. for such a high BP
were you not hospitalised?
BP causes need lot more tests to be done if it is not getting controlled or otherwise.
was a 2 D echo, ECG, blood labs other than kidney
rare causes need to be considered if routine are ruled out. (though you have no symptoms.)
take care and keep me posted on the progress.