I can get a decent tolerance to alcohol no problem, but it doesn't make me feel like shit everyone morning until I have some nor does I get horrible headaches i

I can get a decent tolerance to alcohol no problem, but it doesn't make me feel like shit everyone morning until I have some nor does I get horrible headaches if I try to quit. In fact, withdrawal is so bad its now listed in the DSM-5: Caffeine Withdrawal DSM-5 292.0 (F15.93) Symptoms of caffeine withdrawal have been described since the early nineteenth century but have only recently been researched (Ozsungur, Brenn & El-Sohemy, 2009) . The DSM-5 explains that the most common symptom of caffeine withdrawal is headache. The headache is usually throbbing and sensitive to movement. Headache is the most persistent symptom of caffeine withdrawal and can last as long as three weeks. Changes in mood, such as depression and anxiety; difficulty concentrating and fatigue are also common and can occur without headache. Some patients experience flu-like symptoms such as nausea, vomiting and achiness (American Psychiatric Association, 2013). Other symptoms include caffeine cravings and increased appetite (Juliano, et al., 2012) These symptoms begin within 12- 24 hours of caffeine cessation after prolonged daily caffeine ingestion (American Psychiatric Association, 2013). 96% of patients experience at least two symptoms during withdrawal (Juliana, et al., 2012) Symptoms often occur on weekends when individuals tend to sleep in and begin ingesting caffeine later in the day than normal. If caffeine cessation continues, symptoms can last as long as nine days, with headaches lasting as long as three weeks. Symptoms disappear almost instantly if caffeine consumption resumes. Because many people underestimate their caffeine consumption, symptoms are often unexpected and attributed to other causes, such as illness (American Psychiatric Association, 2013).