Read the following context and answer the question.
Context: Sometimes I forget me ; parts of me that I ca n't remember . The lifelong effects of ECT graced its presence once again , while out during an evening with working friends . I have been employed with this company for roughly two years now ; the majority of my co - workers do n't really know me too well , and I prefer keeping it that way due to stigma . A few ladies , whom I do spend my breaks and lunches with , however , chatter is mostly surface stuff .
Question: What may be the reason that the speaker 's co - workers do n't know them well ?
Answer:


They have mental issues and do n't want their co - workers to know