Theobromine poisoning is an overdosage reaction to the xanthine alkaloid theobromine, found in coffee, chocolate, tea, cola beverages, [1] and some other foods. Mild-to-moderate symptoms include sweating, trembling and severe headaches.
In most cases, chocolate poisoning does not require medical intervention; with proper first aid, all symptoms disappear within 2-3 days. However, in some situations, a doctor should be consulted immediately:

What are the symptoms of chocolate poisoning? Symptoms of chocolate poisoning may include increased heart rate, restlessness, excessive thirst, diarrhea, muscle spasms, and in severe cases, seizures.

Signs and Symptoms of Chocolate Overdose. Chocolate is a delicious treat enjoyed by many, but consuming too much can lead to a chocolate overdose.Psychological Symptoms. Beyond physical effects, chocolate overdose can influence mental state.
Can too much chocolate give you diarrhea? Can I eat 10 chocolates a day? How much chocolate is too much in a day? What are the symptoms of chocolate overdose? Can chocolate act as a laxative?