Saw a discriminatory message about me on my manager’s screen

Location: UK

Hi,

I’ve just started a new job in HR a month ago and have been speaking with my boss about arranging some mental health support through Access to Work. I have been upfront from my first week about my struggles with MH and disclosed this in my new starter pack, though didn’t mention it at the interview (as it didn’t come up). It falls under protected characteristics in the Equality Act 2010 as a disability.

Today I accidentally saw a message on her Teams in which she made negative remarks about some reasonable adjustments which have been suggested in the AtW report for me, and her refusing to implement said adjustments by her saying “I’M NOT DOING IT” all in caps. This was in a private message to another co-worker in HR, which I wasn’t supposed to see.

I don’t just want to let this lie, but am concerned about raising it because:

a) I wasn’t supposed to see the message

b) I’m so early on in employment and have already had a couple of ‘wobbles’ in terms of my health (not working for a while / claiming sickness benefits is not an option as it won’t even cover my rent). I haven’t missed a day but have started late one day and had to WFH an extra day on a couple of occasions.

c) We work in HR and whilst she should know better, she will know just how to get out of any repercussions

d) It is a global company and my boss’ boss works in Sweden, and from what I hear is pretty dismissive about mental health / wellbeing in general.

I have a feeling this will result in her trying to find any excuse to get rid of me, or me getting to the end of my probation period and having her find some excuse about my performance.

Any advice, especially with regard to raising a discrimination issue as an HR professional would be much appreciated.

Thanks!