If your husband was hiding empty bottles of alcohol then no, you did not overreact in any way.
Many of us hid the empties for years. I'm sure he will explain, get upset with you, act the victim, rationalize and then lie again. Unless he is willing to quit for good.
People without serious drinking problems do not hide empty bottles of alcohol. It's as simple as that.
I know how hard it will be for you. No real advice besides wishing you the best.