Welcome squiggly!
I agree with hypochondriac. Though the amounts you mention don't sound troubling, it's what may lie ahead that's a problem. I once drank the same way, but over time I ended up with health issues. I also - slowly - began to increase my intake (alcoholism is a progressive disease). Not saying that would happen to you, but you're wise to be taking a cold, hard look at what drinking is doing to you.
Happy to have you here - hope it helps to be able to talk it out.