You need to raise this issue ASAP with the doctor who prescribed the potassium supplement. Sorry, but this isn't a situation to be addressed in a forum, especially since no other information is available on the reason for the script, your other medical conditions, etc.
Don't take chances; call your doctor today. She/he might need to change the prescription and dosage level, or take other action, but only she/he would know what tests should be done and how to address the issue.
Don't take chances; call your doctor today. She/he might need to change the prescription and dosage level, or take other action, but only she/he would know what tests should be done and how to address the issue.