So it's been maybe a year now and it seems like my bunny hasn't stopped shedding? I'm not sure if this is normal or if he's lacking a vitamin or something but was wondering if anyone knows anything about this?

My bunny is a netherland dwarf (possible a mix but not sure?) , roughly 4 years old and isnt neutered (my parents dont want to get him neutered). Ive had him for almost 4 years and he's never been like this, it's only happened this past year (2024)

I would really appreciate some advice! Thank you