Welcome! As always, Sapling offered wise words.
For me, when I began to think critically about my alcohol use (abuse), that was the sign that there was a problem. I am an alcoholic. Are you? The answer to that is something you will need to arrive at on your own. Read what is here, post away. We can help you think it through.
What I did note in your post however, is that something isn't working for you now with how you are drinking. Something doesn't seem right, and it is bothering you. That is worthy of addressing, yes?