Sorry, I forgot about the Graves. It's not fluids per se but the change in fluids that affects electrolytes. For example, if you are dehydrated, chances are your sodium will increase. Fluid and electrolytes are complicated and it's best to talk to your doc, especially endocrine docs, about concerns. Endocrine disorders are known for causing electrolyte disturbances. It wouldn't be water retention making your MG worse but any associated changes in electrolytes from the retention that would (i.e., potassium).

Even on that drug, you need to drink fluids. What retains fluids are either hormonal issues or the kidneys (sodium). This is where the body is "funny." If you starve yourself, your body will retain fat because we need fat for fuel. If you don't drink water, your body will either conserve it or kick in some sodium to conserve it. Again, complicated little systems.

Having potassium at the same time as fluids has been implicated in lowering blood pressure. Those two "ions" work synergistically together.

Anyway, get the questions ready for your endo!

Annie