Girl #1 thing......THROW OUT YOUR DAMNED SCALE!!!!!! It does you absolutely No good to have it in your house!!! (especially if you are seeing signs of your dd being concerned about her weight as well!!!!!)
As for the Potassium level scare/concern thing I wish I could help you there......if you are at all concerned I would phone your ER and see what they say...tell them that you went to your dr...this is what he said...but that he DID NOT tell you what to be cautious of.....when you should be concerned....or what you can do to try and bring down your levels....tell them that you are having Palpitations....but are not sure as to whether ornot you should be concerned about them after what your dr has told you or not told you!!!!!!!!!!!!!
Please keep in touch adn let us know what happens....

you girl