I presented to the GP in June for joint pain and bilateral leg swelling. They asked how my stools were and I mentioned that I thought I may have pile as I have experienced constipation and diarrhoea plus intermittent blood in stool. She asked me to attend and carried out a manual examination. No evidence of blockage or piles. FIT test carried out. FIT test normal but calprotectin level was 19,815. Blood tests have show Severe Vitamin D deficiency and Iron deficiency anaemia. I have family history of bowel cancer, so with this all together how likely is this all linked and is this a sign of Colon cancer or IBD? I'm not scared, just wondering what the red flag test result ranges are to warrant further investigation? I am a 35 year old female, if this makes any difference.