I developed Horner syndrome in my left eye (drooping, pupil won't dilate) after a sudden onset of shingles attacking my upper left chest, back, and arm. * As a result, I did a lot of research on possible causes of this eye condition and while it's remotely possible that your symptoms have to do with your drinking history, there are many other more likely causes.
Regardless, you're in good hands and they will get to the bottom of it. But try not to blame yourself, okay? Sometimes stuff just happens.
Sending you a hug.
* Just a thought...I never did get the signature rash with this shingles attack, just pain so excruciating I ended up in the ER. Many doctors don't know that you can have shingles without any visible rash, so if you had chickenpox when you were younger, maybe it's a question to ask?