<s>[INST] My MD did not refill my 20 mg Cymbalta yet, and I woke up yesterday with a terrible neck ache and felt bad almost all day, and I slept until 5 PM before I felt better. I woke up today with another neck ache. Is this from suddenly stopping my Cymbalta that I take after breakfast and dinner? [/INST] Hi,you are getting dependent more on drugs, whereas you should be exercising your neck muscles more so as to make them  strong and thus help you relieve your pain.I recommend you to consult a good physio, and take neck exercise. </s>