side effect to vocal cords

I am now 6 months after finishing chemotherapy (3 rounds FEC and 3 rounds D).  Last fall, about halfway through the chemo, I noticed a change in my voice.  I was more hoarse, had to clear my throat more often, and the pitch of my voice was higher. This has now become worse over the past several months, even after stopping the chemo.  I have had no throat soreness or pain. The more I talk, the worse the hoarseness becomes, and the higher the pitch of my voice. 

My oncologist does not feel it is related to the chemotherapy.  To his knowledge he has not heard of anyone with these same symptoms after chemo. 

A few weeks ago I saw an ENT specialist.  He did a scope and there were no polyps or growths (thankfully!). My vocal cords were thin and tight (hence the increased pitch of my voice). He said the problem was one of two things and probably a combination of both.  He said that I likely had damage to my vocal cord nerves from the chemotherapy, and that there was also a stress induced muscular dysfunction of my vocal cords.  I will now be seeing a speech pathologist who will run more tests and do some treatment for my vocal cords. If there is any damage to my vocal cord nerves, this may recover over time.  I can also get treatment for any muscular dysfunction.

I did not have the side effects with the Doxatacel of numbness and tingling in my feet and hands, but I am wondering if it affected the vocal cord nerves. 

My question to anyone viewing this message is:  is this a side effect that anyone else has experienced?  Is it related to the chemotherapy or is it just a stress induced side effect?   I am interested to know if I am alone in this and if it is extremely rare, or if this is something other women are experiencing after a breast cancer diagnosis and chemotherapy.