Have a bad cold with aches and pains in chest and back and discomfort in right ear and jaw. clicking sound in jaw. should i go to er?

Flu-like syndrome: Chest pain is always a reason to see a doctor ASAP. The entire syndrome you describe is disturbing. If you can get in to see a family practitioner or general internist quickly that would be a good idea since an ER is not the place for a detailed evaluation, but they could admit you if necessary and make sure there is nothing life-threatening. Hope that you get better soon. Good luck.

Flu and TMJ: Get medical help for your flu-like symptoms If your jaw pain and clicking persist, see a TMj expert. Any dentist can be a TMJ expert with the proper training and experience. Most commonly, oral surgeons, prosthodontists, and orofacial pain specialists. Ask your MD, your dentist and your dental society for referrals.

Seasonal flu: is very common viral infection. Usually the condition resolves on its own with home care. Antibiotics do not help. Drink water and get a good rest. NSAIDs (e.g. Aleve, Advil) or Tylenol (acetaminophen) are also recommended every 6 hours. If concerned, see your PCP for examination.