Donna all you need for the M.D is correct levels of water and HIMALAYAN salt! I only promote Himalayan salt because its the best and you cannot go wrong with this. People go and buy Sea Salt and get the wrong stuff which is again processed.
I strongly suggest you read Dr Fereydoon Batmanghelidj's book immediately. This problem is easily over come and its because your Subclinically dehydrated especially if you haven't been taking the right salts with water intake.
For every litre of water you drink you need 1/4 tsp of salt!
Gerson I feel is referring to toxic white table salt ! Remember he may not have even come across Himalayan salt back then.
Let us know how you get on! Follow Batman's protocol at least and for 3 weeks before commenting back unless results come before hand. Stop all Tea, Coffee, Alcohol and sodas.