Unfortunately this is a very common symptom and can be the result of oestrogen loss.
Healthy diet, exercise and magnesium supplements may help reduce symptoms.
Another thing you can try are Glucosamine Sulphate tablets, which most health shops stock.
Glucosamine is a natural chemical compound in your body. But it also comes in the form of a supplement.
The glucosamine in your body helps keep up the health of your cartilage — the rubbery tissue that cushions bones at your joints. But as you get older, your levels of this compound begin to drop, which leads to the gradual breakdown of the joint.
There’s some evidence that glucosamine sulfate supplements help counteract this effect, although experts aren’t sure how.