Hi drs, my brother is hving calf muscles pain m mild knee pain ocasionally, going throught treatmnt for low vit d less thn 3, from 1 year, bt the pain has not gone cmpletly, from 2 mnths he has calf muscles pain, mri back, doppler all okaya, need to know does vit d causes calf muscles pain ??? Hw long does it tke to recover from very very low vit d, now the value is 39, bt hw mch it tke tim 2 rflect ??? Aftr 4 ortho nw tking homoe medic