Question

what symptom is one of the most common indicators of nicotine withdrawal?
water retention
muscle twitching
chronic headaches
musculoskeletal system

Explanation:

Nicotine withdrawal symptoms include irritability, cravings, difficulty concentrating, and physical symptoms. Chronic headaches are a common physical symptom during nicotine withdrawal. Water retention is not a typical nicotine withdrawal symptom. Muscle twitching is more associated with other conditions like electrolyte imbalances or neurological issues rather than being a common nicotine withdrawal symptom. The musculoskeletal system is a body system, not a symptom.

Answer:

chronic headaches