Potassium question, Help Please

I know I am new to all this, but I am wondering why I showed really low potassium levels on SCIO if there is potassium in the iodoral that I take. Any ideas on this one?

I don't know if this has anything to do with my low levels of potassium or not, but my nerves have been terrible lately. My hands are shaking so much that people are commenting on it and asking me if I am ok. A couple days ago even my legs were shaking.

Thanks ahead,