One symptom often triggers the other. Fortunately, abdominal bloating and nausea usually resolve themselves with time. Examples of conditions that cause abdominal bloating and nausea include: 1  acid reflux. 2  constipation. 3  gastroesophageal reflux disease (GERD). 4  gastrointestinal blockage. 5  gastroparesis. 6  giardiasis (an infection from an intestinal parasite).
Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction. It is initiated by hormonal signals from the brain to the gonads: the ovaries in a girl, the testes in a boy.
1 This âconstitutional delayâ of growth, development or puberty is the most common reason puberty is overdue, especially in boys. 2  A medical condition: A chronic disease â such as diabetes, cystic fibrosis, celiac disease, kidney disease or asthma â can delay puberty.ater puberty is normal in many families. Signs that the delay may be due to a disease include an abrupt change in growth or arrested development, in which puberty starts then stalls. Headaches, vision problems and other neurological symptoms might mean thereâs a problem in the central nervous system.