Hi there,
Interesting to read this thread, as I'm currently under the care of Dr. Donohue at MGH as well. He's the fifth doctor I've seen in the area about this condition, and I'm really hoping his care can assist my symptoms.
I am waiting for news regarding my Botox injections. My CT, EMG, nerve conduction studies, and x-rays all came back normal. My vascular study showed definite lack of circulation, and my symptoms continue. Dr. Donohue hopes that the Botox may do the trick...we'll see.
I've been really pleased with his care thus far. I hope you are too!