I am sorry to hear that you are dealing with such a bad headache today. Cooking wines and very cheap commercial bottles can be particularly harsh on the body, especially if they contain added salt, preservatives, or leftover fermentation byproducts.
From a biochemical standpoint, the severity of a hangover is largely driven by substances called congeners. Congeners are chemical byproducts of the fermentation and aging process, which include compounds such as methanol, tannins, acetone, and fusel oils. The body has to process these toxic compounds alongside ethanol, which slows down your liver's metabolism of the alcohol and produces more severe inflammation, headaches, and nausea.
In scientific studies comparing various alcoholic beverages, dark liquors consistently rank as the worst offenders because of their high congener content. The general hierarchy from most severe hangover to least severe typically looks like this:
1. Brandy and Cognac: These tend to have some of the highest concentrations of congeners among commercial spirits.
2. Bourbon and Dark Whiskies: Bourbon has significantly more congeners than lighter spirits, and research has shown it produces notably worse hangover symptoms than equal amounts of clear alcohol.
3. Dark Rum and Aged Tequila: The barrel-aging process and molasses/agave byproducts contribute to higher congener levels.
4. Red Wine: Red wine contains tannins, histamines, and congeners that frequently trigger vascular headaches, especially in sensitive individuals.
5. White Wine and Beer: These have moderate congener levels, though carbonation and sugar content can sometimes accelerate dehydration or alcohol absorption.
6. Clear Spirits (Vodka, Gin, Light Rum): Vodka is essentially pure ethanol and water with virtually zero congeners due to extensive distillation and filtration, making it the least likely to cause a severe congener-related hangover, though dehydration from ethanol still occurs.
In your specific case with cooking wine, inexpensive wines are often poorly filtered and may have higher concentrations of acetaldehyde, sulfites, or residual sugars that worsen dehydration and head pain. For now, I would recommend drinking plenty of water with electrolytes, having a light meal with carbohydrates, and resting until your body clears the metabolites.