Welcome ohwhattheheck!
I think you're really wise to listen to that "sneaking suspicion" that you have a drinking problem. That's usually the case with those of us that come here!
There's some pretty big red flags: drinking to deal with emotions/stress, daily drinking, hangovers/withdrawals..... It sounds like your drinking has progressed over time, too, which is also typical of alcoholism. If you've had thoughts about cutting down before and haven't succeeded, you're in the right place!
Glad you're here!