Clinical features of pyloric stenosis in infants are all, EXCEPT:
Metabolic alkalosis, not acidosis is seen in hyperophic pyloric stenosis due to loss of hydrogen ions in repeated vomiting. Ref: Schwaz 9/e, Page 1426 ; Maingot's 10/e, Page 2067.
Abdominal lump
Constipation
Weight Loss
Metabolic acidosis