This happened to me, during a period when I was drinking a LOT (1+ gallon) of water each day. Couldn’t understand the constant headaches, dizziness, “mini-blackouts” (lasting a few seconds). Only when I got sick with something and restricted my water intake did I notice a change — that my salt-deficient syptoms disappeared within hours. Thankfully, I made the connection. When I did some research, I discovered that I’d been peeing all my electrolytes down the drain for the previous two months.
I still drink a good amount of water, but I monitor the amount. And I’m sure to add a sprinkle of salt to almost every meal.
I am a firm believer that we manifest our dire nutritional needs as cravings for foods (or sometimes non-food substances) which contain nutrients we need.
People who eat what tastes good to them tend to get what they need. If I need more salt in my diet, it just plain tastes good.
I had suspected something when Chronic fatigue syndrome was announced not long after our media had gone on a huge low salt/no salt kick, and wondered if the two were related. I do not have high blood pressure, so I did not restrict my salt intake as many others who should not have did.