I'm betting that there will a lot of other people in your class, your dorm, your campus, your university, that suffer with depression and SH. Maybe this guy that was talking has difficulties himself? You never know....

I understand not wanting people you work and study with to know that you have depression as I personally wouldn't want my colleagues to know for various reasons. But I have been surprised by the positive reactions I have gotten when I have been open. When I was at uni lots of things happened that lead me to 'have a black mark against my name' (their words not mine!), and time and time again I went into meetings with them and never told them anything of the reasons as to why I was having difficulties because i was too scared....then one day everything got too much and I told my tutor and to my complete astonishment she understood and said she has difficulties too and I wished I'd spoken up earlier. It radically changed a great deal of my interactions and experiences with lecturers etc. I felt a lot less threatened because I wasn't so busy trying to cover everything up.