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Main symptoms of
Caffeine overdose
Central- Irritability- Anxiety - Restlessness- Confusion- Delirium- Headache- Insomnia
Gastric- Abdominal pain- Nausea- Vomiting (possibly with blood)
Visual- Seeing flashes
Ears- Ringing
Muscular- Seizures- Trembling- Twitching- Overextension
Systemic- Dehydration- Fever
Respiratory- Rapid breathing
Heart- Rapid heartbeat- Irregular rhythm
Urinary- Frequent urination
Skin- Increased sensitivity to touch or pain