hello doctor , My name is shanmmugam.A from tamilnadu. my age is 23 and am working in a computer department as seo analyst. i look so tired always due to this summer. Whenever i getup in the morning, i feel pain in my knees as well as hand joints . Also, i feel very tired i cant get up properly it takes more time to get up from the bed. In the day time, if i stand for more than one hour, i feel very much tired, and my knees are paining.what wil be the problem with me its due to loss of deficiency of vitamins , minerals or iron?