 [ Symptoms ] my potassium level dropped to 2 3 was put in hospital for four days right now it is 2 9 i take pot 160meq daily why  i had the right side of my thyroid removed a couple months before i started having trouble with my potassium level also my sugar level went to 400 after 4 days in hospital they got my potassium is up to 3 5 and my sugar level down with insulin my potassium level will not stay up i have been taking <positive_smiley> pot cl mirco er tabs 20 meq a day if i walk a couple miles or exercise any it causes my level to drop what can cause it to keep dropping right now it dropped to 2 9  [ Disease ] a potassium level of 2 9 is still too low which is why you were put on buy mouth potassium to get the level back to normal