New user with hyperparathyroid disease

Hi, everyone, I'm a 44 year old woman.  I was diagnosed with hyperparathyroid disease and until I have surgery, I need to follow a diet to combat metabolic syndrome (result of disease and should be reversed) which is also very low in calcium.  I'm having a difficult time with this.  I also need to get much more exercise than I do.  I tend to feel better when I get exercise, but sometimes the fatigue is hard to fight. 

Any suggestions would be appreciated!