Please be very careful what you say, what you do.
It happened to me, even though they are obliged to have 'a duty of care' towards sick staff.
I have a mental health disability, worked for a local london authority for 21 years - member of union - was dismissed in 2010 - they put it down to 'capability due to ill health'. Unison betrayed me, management bullied and harrassed me, combined sickness records together over 2 years, used and abused me verbally and physically, went to C.A.B. whose solicitors got involved then telling me i was too late - you only have 3 months after dismissal to file for a tribunal hearing, and you need evidence of such.
I didnt get my application back in time due to my mental state - had all sickness notes from doctor, psychiatrist etc. Was not enough. I wrote to Ester Ranzon then the bullying campaigner, MPs, no one wanted to get involved. I was told it was only my perception of things!!!!!! Im still unemployed in 2013.
So please be careful who you trust or get involved with. God be with you! xxxxx
P.S. Unison disability rep never turned up at absence meetings, i was highly stressed coping with managements question firing - they had each other - there was only me. Highly stressful.