Hi, sounds like your time at FUN is pretty crazy. If you get a chance to read this I can give a little advice to your friend with the vertigo. I get extreme vertigo from my Jardiance. There are two actions you can take, both are very simple but can help. Put say a warm , damp handtowel at the back of your neck,; just at the base of the skull. There are also these premade pads that warm up for sports injuries that work too. Strange as this may sound, sometimes a cold pack or compress works too and or better! Even the doctor who told me about this said different people react in different ways at different times. hope one of the two helps and good luck. james