Symptoms of salt sensitivity include high blood pressure, being overweight/obese, red face, especially after a salty meal, excessive thirst after a salty meal, distended veins, distended abdomen, swollen, aching feet, breathing problems, tiredness, feeling bloated, and many more.
The simple, safe, natural, drug-free way to reduce all of these symptoms is to cut down on salt/sodium and salty food. The lower you can get your intake of added salt the better for your health and comfort. In the main this means avoiding processed, readymade meals as these are usually highly salted. You need to buy fresh food and cook it yourself without adding salt or at any rate adding very little salt. You can find lots of information about foods with high and low salt/sodium content on this webpage, along with further suggestions as to how to lower your salt intake. Read my Mensa article on Obesity and the Salt Connection.