I am 21 years old. Now-a-days, I feel too tired. My legs are tender and am not able to walk as fast as before. Now my fingers too are paining. I am experiencing body cramps. I have been diagnosed one month earlier with vitamin d deficiency and I am on medication. Calcium, magnesium etc have not been checked. At present I am having respiratory infection too with hacking cough and blood stained sputum sometimes. But the pain and spasms bother me more.