I take three vacation trips a year, and for sure two trips will be in Vegas,the other, I will take a cruise, go to Disneyland, Disneyworld, trip to Hawaii, etc. Two days before I leave, I get a chest cold with fever. It happens on all trips. I told my doctor and she told me to drink Orange juice a week before I leave. Does anybody else have this problem or something like it before a trip?:<;