eek wickedwings - that sounds so difficult for you. Not only do you not have great balance it is affecting your ability to 'hear'. Wow i have to take my hat off to you for coping with it all!!
So your balance problems is more a neurological problem? I hope the medication starts to work soon! Yeh the eye-waggng thing is called a nystagmus and is very common during vertigo episodes. I can imagine it makes reading people lips very difficult!
I wish i could suggest something else apart from the meds. Just as a thought do you have programmes on you H/A? do you have a H/A in one or both ears? Because obviously as you know hearing aids can only aid hearing they can't fix it (like glasses) but there are some things you can do to help. If you have a programme switch that eliminates some of the background noise that may help. Basically it switches off the back microphone so obviously you should have the people you are talking to in front of you and all the noise (if possible) behind you so that it is reduced. Also if you need two H/As i would recommend it because a) it will help your balance as it will have equal signals to each ear and b) it will help you differentiate speech from background noise. As i'm sure you know hearing aids aren't perfect but wearing it as much as possible will allow your brain to 'learn' sounds again - there is no point putting a H/A in only when you 'need to hear' because you won't hear as well as you could. Woah sorry for the ramble! But one last thing if i may, have you ever thought about getting a loop system? Again it is activated by a switch on your H/A and there is a lphysical loop that you can link around the tv or the people's necks that you want to listen too. Like a miniture versions of the ones in cinemas and theatres. This programme can link you directly to the person speaking (if they are wearing the loop) so you will hear nothing but them. Maybe an idea, i know in UK you can call social services to come and put them in your home for free!
Please keep safe. I don't want the balance problems to have any more affect on your life than it has but obviously a fall is a danger. I'm sure you have adapted your life very well around your condition but please keep safe, vertigo can be so debilitating. I think it amazing how you are coping so far and really hope the meds help!