Intense muscle pain in neck, so painful. Caused by bad posture. I had taken 2 weeks off from work to recover from a burnout, I just start my vacations and now this. Not only am I even more stressed than at work thanks to the pain but I can't even sleep and every minute is painful as hell. I tried some tylenol and it barely helps. Just trying to get into and out of bed is the most painful thing ever.