I get this too. My dad also had this in the past. It may be alcoholic poisoning or linked to high blood pressure. Since my dad started taking blood pressure tablets the symptoms stopped.I thought it wasabi allergy to certain foods to start with. It effects me most when on holiday and drinking everyday.
I get it every now and then on whiskey but usually it's not as bad with whiskey as long as it notes like bottom shelf stuff. That is nornalally what I stick to as well. I always get it with tequila though no matter the type.