Oh, I know what you mean about feeling as though you are on a boat. Don't worry, that should go.
I was and am a bit paranoid about my eyes and every little thing, I thought I was going blind! Once, I was in the Natural History Museum, looking in one of their optical things. You could see little dots and if they were going up you were short sighted or down, longsighted, or the other way around. The faster they went the worse your vision was. I thought they were racing up so fast that I must surely be going blind. In fact my shortsightedness was so minor that the optician couldn't cut a lens for it and it is still like that.
Your sensation should come back as well, after the setback.
An Itinerary in Light and Shadow Completed Dr Charles Stratton / Dr David Wheldon abx regime for aggressive secondary progressive MS in June 2007, after four years. Still improving with no relapses since starting. Can't run but can paint all day.