Your reports are reassuring overall: a normal CBC,
CRP of 1.23 and faecal calprotectin under 5 make active inflammatory bowel disease very unlikely.
A few caecal erosions with normal surrounding mucosa and normal vascular pattern are usually minor and non-specific, often related to preparation, NSAIDs, or a past infection, and the biopsy report will settle this.
So the picture fits diarrhoea-predominant IBS or a post-infective gut, which is troublesome but not dangerous.
Focus on regular meal timing, adequate hydration, limiting oily, spicy and very cold foods, and stress control; repeated courses of antibiotics are best avoided.
Please book a consultation with the colonoscopy and biopsy reports so long-term treatment can be individualised.