Could Taking CBC Oil Once Daily Be Causing My Diarrhea, Considering I’ve Been On Lorazepam For Years And Had Colon Surgery 8 Years Ago?

HI I been taking lorazepan ,5mg for years now I stated CBC oil 350 mg I was taken one at day time one at night now because

the oil I cut to one a day! I had colon surgery 8 years ago
I have the impression the oil is affecting my digestion and giving me diarrhea thanks