Was a heavy drinker, tremendously slowed down, now heart rate increases after drinking

Has anyone experienced this, and if so, has it ever stopped happening after drinking?

I used to binge drink for like 10 years, slowed down to drinking once a month and only consuming 2 wine coolers. Now even after just having 2 wine coolers in a night, i have a heart rate of 85 bpm for a n hour or 2 trying to go to sleep. I tried actually drinking one night (8 mixed drinks over 8 hours) and went to sleep fine but woke up in the middle of the night with a 100 bpm heart rate!

WHAT IS HAPPENING?

(Pre-answering the stupid comments- I am going to see my doctor but I know she’s going to say she doesnt know but just dont drink. I get it, alcohol is poison, but I cant have just 2 drink?! Thats just crazy. Im not asking for medical advice, im asking for personal experience)