It could, but I'm no doctor lol. Depends on how much salt we're talking!
Can eating too much salt in one sitting make you lightheaded?
It's the opposite for me. I get light headed when I don't have enough salt .
I have heart issues so I must try and keep salt consumption to a minimum to control by blood pressure. One day I gave into temptation and had a really good "Old New York" Reuben Sandwich. The sauerkraut was delicious. But the sudden high sodium intake spiked my blood pressure to the point I almost had a heart attack. I had to go to the ER for help.