 [ Symptoms ] why do i get a sore throat everytime i go near saltwater i never go in i just stay on a boat or dock i stay inside a house that is not exposed to the outside moisture such as a camper or tent would do i usually get it at the start of day 2 i dont stay up and make myself tired so i know im not adding to causes i always cover up accordingly so as to not get cold when i am out on the water in the boat [ Disease ] drinking diet soda in moderation should not be a problem although one study showed diet soda was associated with preterm delivery more studies are needed to confirm a relationship also remember soda has caffeine the march of dimes recommends 200mg or less daily for pregnancy women and a diet coke has 45 mg be sure not to skimp on water and other nutritious beverages such as milk