I also have had throat problems. It was throat spasm, just like other muscle spasm only in the throat. It has caused food to become stuck and breathing stopped. The thing to do is stay clam and know that the spasm will pass and you will breathe again. It can be very disconcerting. My ENT specialist said reflux was irritating the throat and causing spasm. I cannot take meds for pain and get reflux from the stress of chronic pain.

I want to reassure you that this will stop if you control the symptoms. For me mirror therapy has been like a miracle. It stops the pain and with it the symptoms like hypersensitivity, sweating, nerve firing and things like muscle spasms. Guid4ed visual imagery, bilateral limb recognition and mirror visual imagery work very well to ease and stop the pain of CRPS. The thing is you retrain the brain. There is research and scientific understanding to back this up.
I know it works because 12 months ago I was a mess. I believe now I am on the road to beating this.

jeisea
http://www.crps-rsd-a-better-life.blogspot.com