This really depends on so many factors. How bad your overgrowth is being a major factor. What candida diet are you on? How strict is it? Are you taking any anti-fungals?
It's highly possible your symptoms are from die-off. It's also possible it's from the vodka, you don't say how much vodka you had;-) hic!
I know it's difficult when we cheat, we get down on our selves. The thing to remember is nothing is unfixable. Everyday is a new chance to get things right, to start again. I've found from experience giving yourself a hard time is one of the key factors in overgrowth coming back. It's important to recognise every cell in your body hears and reacts to every thought you have. Work just as hard on thinking positive, life affirming thoughts as you do on your diet and treatment. Your immune system will only kick back in and work for you if it thinks you love yourself. I know it might sound wacky, but positive thinking is an incredibly powerful tool in the fight againts foreign agents messing with your shit.