I recently had a heart echo that came back normal but noticed on results 1.1 cm interventricular septal thickness and 1.1 cm lv wall thickness, both at upper range of normal. is this a worry or ok?

Forget numbers: A review od your symptoms and medical history are needed to make sense of any test, normal or not. You can't interpret medical tests just by looking at "normal values". There is a reason there is arange of normal. We are all a little different. But, for what its worth, "normal" in this case is probably just that...normal.

Normal values: As you note these measurements are at the upper limit of normal, which means they are within normal limits. Unless you are a very small person, these findings would not indicate a problem.