Suggest Treatment For Headache,dizziness,nosebleed And Vomiting

I have been feeling denerally unwell. I was in the hospital last week with a terrible headache { I have never been pronged to getting headaches) dizziness, nose bleed, vomiting, and extreme fatigue. The hospital did a spinal tap and a CT scan and said all was fine but my potassium level was 2.2 and I was admitted and given IV potassium and released when level was 3.1. I have been living with this problem for years now I have to take alot of potassium everyday to no avail. I end up in the hospital at least twice a year with extremely low levels and have to stay for atleast a week with continuous IV potassium. My EKG is always showing a prolonged QT but no one seems to care why my potassium doesn't stay mormal. The doctors just get my levels up and show me the door. Can low potassium make me feel so unwell all the time?

Dena