Hi. I had to look up mdds.

I found this (I'm sure you know all about this, but I wanted to share some info on this malady)

http://www.mdds.org.uk/

Honestly, I never knew that a person could go on a cruise and have problems getting their land legs back.

Like when you go on a merry-go-round and everything is spinning, but when you get off, in a few minutes, all is well, BUT IN YOUR CASE, ALL IS NOT WELL.

I will poke around some more on the internet and if I find ANYTHING that can help you, I'll be sure and post it.

I am so sorry you have to endure this vertigo kind of living.

Not fun, I can imagine.

You are in my thoughts.

Melody