Hi,
The basic problem lies in
IBS wherein your intestines are not working properly, unable to absorb important nutrients, vitamins, minerals and trace elements giving secondary problems of
osteoarthritis, vitamin-D and others deficiency,
pernicious anemia. ESR is only prognostic and has not much value in determining the cause of diseases hence better ignore.
I would advise you to
consult a gastroenterologist for clinical examination, relevant investigations like
colonoscopy, tests of blood, urine and stool. To get started proper management of IBS and getting correctly treated will improve on your nutritional absorption and thus utilization by body to improve your health. Also, get supplements under the guidance of a doctor and nutritionist. Thus, all will revert to normal health.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. T. Chandrakant, General Surgeon