White Stringy Substance in Stool... (Could it be Candida, Parasites?) Is this Stool Normal for IBS?

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is this stool normal for IBS? or could it be parasites? I started to have abdominal pain in June due to gas July it got worse and turned to LPR Acid Reflux. August i was diagnosed with Lactose Intolerance via Endoscopy Biopsy results. Had X-Rays and they saw trapped gas and feces. Ever since im struggling with Depression and Anxiety.