Is it possible for a person that has this for it to sometimes NOT show in your blood work? I have had elevated high calcium showing on and off in blood results since 1995. I know I do NOT feel well and they keep telling me nothing is wrong. About a month ago I collapsed when doing blood work it was at 10.8. They waited a month and did another test including magnesium and PTH this time. They called today and said all is normal. I have 13 of the 18 symptoms. I have not seen my blood results to see what normal is normal to them. Also they did not tell me the PTH should be done when I first wake in the morning. I live in a small rural community. I don't know what to do...any suggestions or inputs.