HI DR. RYNNE, I HAVE HAD TWO BLOOD TRANSFUSIONS TWO

HI DR. RYNNE,
I HAVE HAD TWO BLOOD TRANSFUSIONS TWO MONTHS IN A ROW (DEC AND JAN) AND NO ONE HAS FOUND OUT WHAT MY PROBLEM IS.EACH TIME MY BLOOD LEVEL WAS 7.1. I HAVE EXPERIENCED SHORTNESS OF BREATH AND TIRE REALLY EASILY. I'M ANEMIA, I HAVE CHRONIC KIDNEY DISEASE, STAGE IV. MY GFR IS 29. I HAD A COLONOSTOMY IN JUNE 2015, AND I'VE YET TO HAVE AN ENDOSCOPY, BUT I WILL SOON. CAN YOU TELLME WHAT MIGHT BE WRONG WITH ME, SO I CAN GET HELP. THANK YOU