Hi all, I've posted on here several times after testing positive for the intrinsic factor antibody a month or so ago. Until then, I had had a year of general fatigue, then 3-4 months of increasingly bad fatigue, cracked corners of my mouth, shortness of breath, inability to exercise, forgetfulness/difficulty concentrating, and difficulty working that culminated in me going to the doctor. I am a vegetarian (for 13 years) and was taking a B complex supplement with folic acid, and had been since I became a vegetarian.
I got blood tested, and am including my results at the bottom here. I was mildly B12 deficient, vitamin D deficient, and had low iron saturation. My blood count was normal. After another round of tests, I tested positive for the intrinsic factor antibodies. My doctor said I had underlying pernicious anemia that had not yet developed into anemia. I took 1000mg of B12 subcutaneously for 7 days, then once a week for the last two weeks.
Today, there was a cancellation, and I got to see the hematologist I had been trying to see (as my general practitioner had said it could be a good idea). The hematologist told me that I do not have pernicious anemia, that I should stop the B12 injections, and just take Vitamin D and iron supplements. She said the intrinsic factor antibody test had likely been a false positive, because my gastrin was normal and I tested negative for antiparietal cells. She said above all, I was not anemic and had normal blood count, and therefore did not have pernicious anemia. When I asked her about the shortness of breath when exercising, fatigue, etc, she said all because of Vitamin D and iron deficiency.
I'm really frustrated and confused, because I thought the Intrinsic factor test was fairly specific. I also really felt like she downplayed my level of fatigue. She also told me just to start exercising again (even though I stopped because of shortness of breath) and I would probably start feeling better anyway.
Does this completely rule out pernicious anemia then? Obviously she's a hematologist so I figure she knows what she is talking about, but she was so dismissive of my symptoms that it all feels really confusing and upsetting. Would love to know others' thoughts!
My results (please ignore if not relevant):
-Vitamin D, 25-Hydroxy 25.50 ng/mL, range: 30.0-100.0
-Vitamin B12 7/28/2018 221.00 pg/mL, range: 232-1245
-Folate (Folic Acid), Serum, 18.10 ng/mL, range: >3.0
-Iron Bind.Cap. (TIBC) 427.00 ug/dL, range: 250-450
-UIBC 383.00 ug/dL , range: 131-425
-Iron, Serum, 44.00 ug/dL, range: 27-159
-Iron Saturation 10.00 % , range: 15-55
-RBC 4.56 x10E6/uL , range: 3.77-5.28
-Hemoglobin, 12.90 g/dL , range: 11.1-15.9
-TSH 2.52 uIU/mL, range 0.450-4.500
-Triiodothyronine,Free,Serum, 3.30 pg/mL , range: 2.0-4.4
-T4,Free(Direct)1.10 ng/dL, range: 0.82-1.77
-Intrinsic Factor Abs,Serum 13.50 AU/mL, range: 0.0-1.1
-Antiparietal Cell Antibody 17.20 , range: Units 0.0-20.0
-Gastrin,Serum,16.00 pg/mL, range: 0-115
-Methylmalonic Acid, Serum 101.00 nmol/L , range: 0-378