Thank you very much for the useful information.
Honestly, I believe that she needs a comprehensive clinical examination at first place.
The symptoms you have described can be due to variety of reasons, ranging from something simple (like skin disease) to a complex problem (endocrinopathies --- or simply hormonal problems).
There is possibility of Cushing's disease, a condition due to over secretion of steroid hormones in the body, which can affect skin, easy bruising, redistribution of fat under the skin, and a variety of other symptoms also.
Basic blood tests, and hormonal profile including thyroid, cortisol and other pituitary hormone levels should be tested after a careful clinical examination.
You can discuss these details with your GP and he can order these tests and if any abnormality detected, can arrange referral to an Endocrinologist.