You probably need more salt. If you're consistently eating around 1000mg per day, that's not enough.
I'm personally of the opinion, after reading a lot of studies and academic analysis papers about the relationship between salt and health that in the vast majority of people, salt consumption should be unlimited. A normal, healthy body will use the salt that's needed and expel the rest with no negative effects.
Additionally, humans (and most mammals) have what's referred to as a "specific appetite" for salt - it's one of the few things that we crave specifically when we're lacking it (other cravings are largely psychological, whereas salt cravings are often physiological). That's because sodium is absolutely critical for a huge range of functions in the body, and not having enough can make you feel seriously crappy. Without sodium (and adequate potassium as well), the proteins that regulate fluid balance in your cells can't function.
Just watch the source of your salt. The best would be a high-quality sea salt (like Himalayan salt, celtic sea salt, etc etc - higher mineral content), followed by table salt (NaCl). Avoid MSG and stuff like that in highly processed packaged foods.
So my advice is to go grab some good sea salt, make some veggies or scrambled eggs and sprinkle to your heart's content.
http://www.scientificamerican.com/ar...he-war-on-salt