I am 21-year-old female, I have very high pulse rate, mostly above 100, 120 is also normal for me but my metabolism is slow, any healing is slow, no thyroid problem nor diabetic but have pcos. I had to take iron and d3 as vitamin d and hemogram was way below normal. Vitamin d, till I started d3 supplements, was 5.7 and hemoglobin was 6.7 before I took 5 injections and now am taking supplements for the same. Now d3 is 24.35 and 10.9, less but better than before. What is the way forward? Why high pulse but slow metabolism? Thanks.