Even when I was hospitalized, mine was only 3.1, which is only very slightly elevated. The scale my lab uses says below 2.9 is normal. It doesn't look like it's really that accurate for all of us:
"CRP has been reported to have modest correlation with endoscopic and clinical findings, generally better with CD than UC. The major downsides to CRP are its lack of specificity for intestinal inflammation and moderate false negative rate. Genetic variations in CRP likely contribute to its overall lower sensitivity." https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4616202/
That's the same for me usually Sara14. I could be about
to have my bowel removed and my ESR will be normal, and CRP barely elevated. However it was over 100 when I was hospitalised in March 2020 - which surprised me - but everything about
that flare up was odd for me.