Most prominent and prequent is high-voltage appearing on your ekg.
..But must meet certain criteria make it hypertrophy (lvh--left ventricular hypertrophy). There may be some changes such as strain-pattern after the "qrs complexes etc..
If you have training in this, you know what I am talking about.. If not, this probably sounds greek to you.
Consult your doc--do ekg and tell you...