Gastroesophageal Reflux Disease (GERD): Hiccups can be a symptom of GERD, especially in older adults, and anorexia can be associated with the discomfort or pain caused by GERD.

Gastritis or Peptic Ulcer Disease: These conditions can cause upper gastrointestinal symptoms, including hiccups and anorexia, due to inflammation or ulceration of the stomach lining.
Inflammatory Bowel Disease (IBD): Conditions like Crohn's disease or ulcerative colitis can lead to symptoms including hiccups and anorexia, especially if there is involvement of the upper GI tract.
Medication Side Effects: Certain medications, such as steroids, antibiotics, or chemotherapy, can cause hiccups and anorexia as side effects.

Myocardial Infarction: Although less common, hiccups can be a symptom of myocardial infarction, particularly in women and older adults. Anorexia can also be present due to the stress response or pain associated with a heart attack.
Pneumonia or Other Pulmonary Infections: Severe infections can cause hiccups due to irritation of the diaphragm or nerves and anorexia due to systemic illness.
Malignancy: Certain cancers, especially those involving the stomach, pancreas, or lungs, can present with hiccups and anorexia due to tumor effects or metastasis.

Neurological Disorders: Conditions such as multiple sclerosis, stroke, or brain tumors can cause hiccups due to central nervous system involvement, and anorexia can be associated with these conditions due to various factors including dysphagia or altered mental status.
Endocrine Disorders: Rarely, endocrine disorders like hyperthyroidism or hypothyroidism can lead to gastrointestinal symptoms, including hiccups and anorexia, although these would typically be accompanied by other more specific symptoms.
Psychiatric Conditions: Certain psychiatric conditions, such as depression or anxiety disorders, can manifest with physical symptoms including anorexia and, less commonly, hiccups, especially if there is significant stress or anxiety involved.