A few years ago my balance started getting really bad, Im mean
extremely bad, to the point of staggering side ways and falling over.

I had never had this problem before, scared the crap out of me to be honest, so went to the doctors to get it sussed out.
I spent a week getting scans, blood tests, etc. etc. etc.
They found nothing.

The strangest thing was my balance was really good most of the time and it was only failing me occasionally, which was a mystery to the so called "specialists".
Anyways the doc's asked me to keep a diary each day of what exercise I was doing, what I had eaten etc. to see if they could find some sort of link to what it was affecting my balance.
After 2 long months of keeping diary entries every day of my movements and diet I went back to the doc's to see if he could pin point what the balance issue was that was causing me to fall over.
After the specialist spent an hour reading my diary and jotting down notes he finally came across the reason of my occasional loss of balance.
Seemed it only happened on the days that I went to the pub at happy hour.
I hope after reading all of this it has helped you with your problem.
Glad to help.