(Concern) Is tooth whitening causing severe tooth sensitivity?

I usually enjoy drinking coffee because I like it.

Maybe that's why my teeth aren't as white as other people's.ㅜ

I'm thinking about teeth whitening and looking into various reviews.

I read that it's not good to do teeth whitening because it can cause tooth sensitivity.

How much sensitivity will I experience after teeth whitening?

I'm wondering if it's always the case that my teeth are sensitive.

I'm still worried because my teeth are a little sensitive now.