Low blood pressure upon standing and walking around? am i not eating enough salt?

Orthostasis: Actually it is likely not related to salt at all, but may be due to lack of enough fluids. In the spring and fall when the weather is not too hot we often forget to drink enough fluids, and water is the best of these. Recommendations are eight glasses of water each day, so nex time you feel lightheaded, try drinking a glass of water.