Can you please explain why sweets give me ridiculous headaches?

Headache triggers: Headaches can be triggered by a wide variety of factors such as smell, taste, stress and in your case sweets. The good thing is that you seem to have identified your trigger. So you will know what to avoid. The downside is that sweet things are some of the best things in life. At least, one less factor to worry about that can impact one's waistline!

Sweet food pain: If the sweet food cause the headache every time or sometimes in the same region of the face or teeth, then there is highly possibility of problem related to your teeth or tooth close to the headache area. Headache is a result of an amplification from the neuron or nerve ending hypersensitivity. Common causes related to sweet headache is tooth root exposure, bite disease and some systemic disease.