Good to know that all things have remained constant (good job listing out the background info). Certainly is worriesome. I recommend seeing a homeopathic Dr. We go to Dr. J. Polich at the DuPage Homeopathic Ctr in Naperville (www.dupagehomeopathic.com) for our chronic problem (DS has eczema). I use homeopathic remedies for all our acute ailments like colds, flu, first aid.... Anxiety in kids is common, but very treatable.
I found this doing a google on treating anxiety w/ homeopathy:
"Perhaps no other system of medicine has such a superb approach of tackling the mind-body disorders with definite therapeutic agents. Homeopathic remedies are capable of influencing the state of mind. They can specifically act to alleviate emotional disturbance such as excessive anxiety, irritability, insecurity, obsessive traits, undue jealousy, suspicion (paranoid) fears, depression, neurosis etc. By relieving the emotions such as above, homeopathic remedies bring about harmonious state of health. Thus homeopathy demonstrates the possibility of the highest goal of medicine, the therapy for the person rather than for the disease alone. Homeopathic remedies can cure mental & emotional disturbed states."
Dr. Polich is giving a free talk on homeopathy on 3/15. All the info is on her home page (www.dupagehomeopathic.com). I'll be there if you want to come!
One thing you can try on your own is Bach Flower remedy "Rescue Remedy" (homeopathic). http://www.bachflower.com/Rescue_Remedy.htm
This is great for stressful situations when a child gets hysterical or in a tantrum. It helps them calm down almost immediately (works on my little baby 9 mos when she's all worked up about something). I even give it to my dog who hates car rides (she stands the whole time - after I give it to her, she will even lay down to ride). They carry it at Fruitful Yield and Whole Foods, might even have it in the natural foods section at Dominicks or Jewel, maybe even at Walgreens or CVS.
Feel free to email me offlist if you want to talk more!
Best of luck. --Jen S. (Naperville)