I am 48 have a cartilage and meniscus tear on my left Knee.I haven't thought of any surgery for the last 10 years and have been walking and running so long. Recently last 6 months when I start to walk a short distance I get a pain on my calf muscles i need to wait for a few a minute to continue to walk I did see a doc for other issues where they told me I have a Vitamin D deficiency and under medication for this.However when we did take a scan it was noticed that there was insufficient blood flow to my lower hips and I been been given Tabs for diluting or thinning the Blood. Is this pain due to this or because of my Knee Problem. Suggest a good Doc in Bangalore Thanks for the help