Which alcohol withdrawal symptoms can happen after only about 3 or 4 weeks of nightly consumption?

After Alcohol. Delerium tremens or dts can occur even after regular chronic alcohol consumption is abruptly terminated in some people. Marked by hallucinations, cardiovascular instability and seizures. More likely you will experience tremors, headaches, fatigue, sleep changes, irritability, agitation and in some cases palpitations. Your consumption amount will also impact the degree of symptoms experienced.
How much alcohol? In general, drinking up to 3-4 standard drinks per night should only cause some rebound insomnia, with difficulty both falling asleep and staying asleep. Drinking very large amounts of alcohol (8-16 drinks) can result in morning shakes, anxiety, increased sweating and, in some people, seizures. Severe alcohol withdrawal, with seizures and dt's, generally takes months to years of heavy drinking.