I second the notion of a small case on wheels. I've seen them at
other gem shows and will be buying one myself.
The sugarless candies are not recommended since the sorbitol will
give you the wind like the sulfur from hell. Not good if you are
pregnant and want to be around other folks. Dried fruit will do the
same. I'd stick with what you normally eat and try to stay away from
anything that will bind, both in clothes and food. Oh, and try to eat
lightly. It will make the trip easier on you.
Also, I've seen some folks at these shows with a small folding
chair, folds up like a baby stroller that folds up like an umbrella.
If you have the rolling case you can put it in that. Then you'll
always have a seat. There are also small folding stools that artists
use for painting outdoors.
Drink lots of plain water. Reverse osmosis water is pure water and
is better than spring water since spring water has minerals that can
also cause swelling. Having swollen ankles and feet is part of the
trade show experience but can really be a problem when pregnant. Been
there. You can get one or two smaller bottles of water and a gallon
jug of distilled or reverse osmosis water from a grocery store and
fill the small ones from that. BTW, I only use RO water when making
investment, pickle or if I need to wet my flux. Makes a huge
difference in the quality of those processes.
Most of all, have a grand time and let us hear of your discoveries
when you get back...for those of us not able to attend!