Hello! I was indeed a corporate lawyer and suffered with depression and anxiety. I left after 5 years in practice, for reasons unrelated to my mental health and sadly have done worse since leaving (don't worry - nothing to do with leaving!).
I found it ok - its important to be honest with the right people. I didn't want many people knowing at all, so when things got bad I told my big boss and for everyone else, that was a no. You have to do what feels right but also look out for yourself x