Malabsorption problems

I went for my 6 mo check up and they said I have malabsorption and need to begin Vit D capsules one every 2 weeks for 6 weeks 50000 and a Vit with D in it and B 12 sublingual and also shots .I am not getting enough of either or protein .Does any one else have this problem.My MIL had the surgery and it was so bad the mal... that she had it reversed and when they did she coded and wound up on dialysis and died .My BF is afraid that it may happen to me.Help.Dee