I just want to mention that having a sore jaw and headaches could very well be from teeth grinding or clenching which tends to happen at night. I have GAD and have many of your symptoms (constipation, headache, sore jaw, chest pain, general anxiety, waking in night with elevated heart rate and burning in abdomen) These all have been alleviated with an anti-depressant "Effexor". I was previously on "Paxil" for many years when it stopped working for me. I also experience swollen eyelids and labored breathing, but this is due to allergic asthma. But labored breathing is often a sign of GAD. If the problem is GAD, it often takes trying out a few different anti-depressants/ anti-anxiety medications before finding one that is right for you. I wish you the best of luck and please don't give up.