My gf had this kind of potassium in her 2nd test too. I think maybe it was transitionatory? She came out of 4 lows anyway.
I had low potassium in my 1st test, then checked my cronometer and i never hit the rdi for it. So i had tomato paste and potatoes to hit the rdi, as well as 30mg zinc a day which increases it. My 2nd test my potassium increased a lot, taking me out of 3 lows. Check my signature. Now ive been trying to get my mg up.
Btw i dont think you should take zinc, it lowers copper, and yours isnt high. I shouldnt have taken it in hindsight.