5FU chemo and growing hair around mouth, chin and nose

Hi,I have been diagnosed with bowel cancer in 2022 and from March 25 diagnosed with recurrence. I am currently under 5FU chemotherapy and I am experiencing loss of of hair (thinning) but at the same time I have just noticed that black  hairs are growing around my mouth, on chin and nose. Does anyone is or has experienced that and why?