Sudden alcohol allergy?

Around 2 months ago the palms of my hands started itching horribly. Over the course of the first month my hands and wrists started getting a small amount of hives, then my feet started getting itchy as well. This last month I’ve been getting full body hives that seem to get worse and spread more over my body every time I drink the day after. They usually go completely away the next morning if I hadn’t drank the night before.
I’ve been drinking since I was 22, I’m now 29. I will say I’ve been heavily drinking (mostly beer, vodka, & whiskey) most of these last several years. At first I thought it was heat rash and the alcohol wasn’t helping with my pores, when I was sweating at work being 80+ degrees inside. I stopped drinking for almost 2 weeks and had no problems with my hives so it’s gotta be randomly becoming allergic to alcohol. I don’t have any headaches, nausea or anything noticeably wrong or different except for these horrible itchy hives (they are much worse in person). I don’t take any medication, nor have I made any recent changes that would affect my body like this so suddenly. Has anyone else experienced this? I have yet to see a doctor, and I know I should. Unless it’s something really serious anyone knows about, I just see them telling me to stop drinking.