Hi S.S.
I'm so glad your second visit to the doctor was more productive. There are a few of us on here with nerve damage that affects their vocal chords, along with many others who have different or unknown causes for their voice problems so you are certainly not alone. Try not to be worried about about visiting the ENT consultant and having a exam of your larynx, it should not be through your mouth, but through your nose via a long thin flexible tube attached to a camera. The consultant normally gives you some nose spray to numb your nose and throat first of all, this is a weird sensation, and they recommend you do not try to eat for about 1 hour afterwards, but is not painful in anyway. The important thing is to relax, as it makes it far easier for the camera to reach its destination this way, perhaps you can take a sedative before hand if you think you will get very anxious. once the camera is in position they will ask you to try and make make a few sounds, swallow and breath. then the camera is withdrawn and it's over :-)
The vocal chords sit across the larynx and they must open fully to allow us to breath, the reason a number of people with voice problems have breathing issues is that either one or both or the chords fail to open completely leaving you feeling like you are breathing through a straw, and this will be one of the things the ENT consultant will look for.
Speech Therapy is something you must consider pursuing, as Hazel says, they may be able to help you maximise what you have and even improve you voice if the condition is considered long term. Think of it as physiotherapy for the vocal chords.
The itouch speak it software sounds a good idea, I know that some others on the forum would like something like that, is it easy to use for a conversation (as opposed to pen and paper?)
You might also like to have a look on our social network site,
http://voiceproblemsupport.ning.com/where there are some films showing vocal chord problems and how the chords should work.
Let us know how you get on.
Janet x