Hi Anne. I have been spaced out lately, and I just didn't clue in that you were the "Anne" who had lost a child. Having lost a child myself, I can remember being hurt by insensitive (and often unintentional) remarks by people, and hope that I have not hurt you by referring to you raising your "two" children. I have NO idea what could be causing your low potassium levels, but when I did a search on the internet for "low potassium", quite a lot of options came up; have you tried this?? Maybe there would be some insite for you there, and some suggestions for tests to talk over with your doctor, etc. In any case, I hope that you can get to the bottom of this soon; feeling sick is one thing, but if you are a "worry-wart" (like I am!), wondering about it could be making matters worse! God's blessings.