Colbalt levels 86. how concerned shold I be?

I was referred to the Mayo in March. Dr Rafael Sierra has my case.
Checking schedules I find out I am at least 5 months out.
My Colbalt levels are at 86. They suggested I request my referring Dr to send a URGENT FAX to Mayo. Which I have. I just got on opiates for the pain. They mess with my sense of well being. I am being to
overreactive.