Based on the information provided, it is possible that the 60-year old woman may be suffering from somatic symptom disorder (previously known as somatoform disorder or somatization disorder).
Somatic symptom disorder is a mental health disorder characterized by physical symptoms that are not fully explained by a medical condition or by the effects of a medication. People with somatic symptom disorder often experience a high level of anxiety or distress related to their physical symptoms, and may be preoccupied with the belief that they have a serious medical condition. They may seek repeated medical attention and undergo numerous tests and procedures, despite negative test results.
It is important to note that somatic symptom disorder is not a diagnosis of exclusion, meaning that it should not be considered only after all other potential medical explanations have been ruled out. Instead, somatic symptom disorder should be considered as a potential diagnosis if the person's physical symptoms are severe, persistent, and cause significant distress or impairment in their daily life.
It is also possible that the woman may have other diagnoses in addition to somatic symptom disorder, such as chronic back pain or chronic anxiety. It would be important for her to receive a thorough evaluation from a mental health professional and possibly a medical specialist in order to determine the most appropriate treatment plan.