Irritable Bowel Syndrome (IBS): This condition is characterized by a change in bowel habits, including bloating, abdominal pain, and altered stool consistency, without any visible signs of damage or disease in the digestive tract. The symptoms described align closely with IBS, especially given the absence of other alarming symptoms.

Constipation: Often presents with bloating and a decrease in the frequency of defecation, which could be mistaken for a lack of normal defecation urge. Constipation can be due to various factors, including diet, lifestyle, or other medical conditions.
Gastroesophageal Reflux Disease (GERD): Although primarily known for causing heartburn, GERD can also lead to bloating and discomfort, potentially altering the sensation of defecation urge.
Small Intestine Bacterial Overgrowth (SIBO): Characterized by an excessive growth of bacteria in the small intestine, SIBO can cause bloating, gas, and changes in bowel movements, which might be perceived as a lack of normal defecation urge.

Colorectal Cancer: Although less likely, it's crucial to consider colorectal cancer, especially in older adults or those with a family history. Changes in bowel habits, including a feeling of bloating instead of the usual urge to defecate, can be a symptom.
Inflammatory Bowel Disease (IBD): Conditions like Crohn's disease and ulcerative colitis can cause significant changes in bowel habits, including bloating and altered defecation patterns. Early diagnosis is critical for effective management.
Intestinal Obstruction: A partial or complete blockage of the intestine can lead to severe bloating, constipation, and abdominal pain. This is a medical emergency requiring prompt intervention.

Gastroparesis: A condition where the stomach takes too long to empty its contents, leading to bloating, nausea, and changes in bowel habits. It's less common but should be considered, especially in patients with diabetes or those taking certain medications.
Celiac Disease: An autoimmune disorder where the ingestion of gluten leads to damage in the small intestine, causing bloating, abdominal pain, and changes in bowel movements. It's less likely but important to diagnose due to its specific treatment requirements.
Hypothyroidism: In some cases, hypothyroidism can cause constipation and bloating, potentially altering the normal defecation urge. While not directly related to bowel habits, it's a systemic condition that can have gastrointestinal manifestations.