It happens pretty much every time that I drink, two days later I feel hollow. It is a very sad feeling but still quite different from depression. On this post-drinking hollow day I can still easily laugh at things I find funny, I am excited about life and events in the future, and while I often feel tired on days like this it isn't a debilitating exhaustion. Depression is so different, which is why I don't worry when I feel a little sad after drinking.
I didn't even finish writing this post, but I am publishing it anyway.