Talk to Gastroenterologist on Gastroenterology

Girl age 10 years 7 months has gastro intestinal issues. She gets diarrhea after every few weeks and gets constipation also after every few weeks. Gave her complete course of entamizole and antiworm(probably Atarax). Also sometimes give enflor sachet with banana. Her face appears pale when she's having diarrhea or constipation. We got her stool re and stool culture tests done. Reports were absolutely normal. Do we need another tests. I must mention that she has such issues since birth. Around 6 years ago she was completely screened for all diseases with blood tests even thelasemia but Alhamdulillah all tests were negative.