Hypercalcaemia
A condition in which the level of calcium in the blood is too high. It can occur as a result of myeloma bone disease and can cause thirst, nausea, vomiting, confusion and/or constipation
Thirst
When the bones are damaged, calcium is released into the bloodstream. Too much calcium in the blood is called hypercalcaemia. It makes you feel very thirsty, sick and tired.