Hello there we understand how it feels when we hear when something unusual happen to one of our dearest ones. We are sorry that your relative has to face this and it is unfortunate. Any how this is the only it presents first amd then she gradually looses her hemoglobin in her blood and will have still more weakness if this prolongs. But you see she needs supplements to regain what she is loosing kindly take to a oncologist for futher evaluation and management. Thank you

Please visit a Surgical Oncologist and get biopsy and staging of the disease. Start treatment as per stage earliest possible