Cymbalta is used to treat major depressive disorder and general anxiety disorder. It is also used to treat a chronic pain disorder called fibromyalgia, and to treat pain caused by nerve damage in people with diabetes (diabetic neuropathy).
Caffeine-withdrawal headaches can last up to 48 hours and can be as intense as a migraine headache. Withdrawal symptoms can begin 12 to 24 hours after the last cup of coffee and can last up to 1 week. These symptoms can include lethargy, extreme nervousness, irritability, sweating, headaches and shakiness.
The duration of caffeine withdrawal has been shown to be 2â9 days (Griffiths et al. 1986, 1990; van Dusseldorp and Katan 1990; HÃ¶fer and BÃ¤ttig 1994a), and the possibility of withdrawal headaches occurring up to 21 days has been suggested (Richardson et al.