At the grand old age of nearly 50 I was diagnosed with adhd at the end of July. I went privately.
I have gone through a whole range of emotions....relief that finally I can understand why I have never got anywhere in my life, anger that I have got nowhere, and sadness that it will be too late to achieve much but at least I may get my book written 
once I am on meds.
I am currently off work sick with stress and anxiety...there are a lot of reasons for this. I am due to go back next week and have been sent some forms to complete to help my return. My manager is amazing and will support me.
However do I tell them? It is after all a disability diagnosis and I feel that it would be useful for them to know. But what, if anything, can I ask them to do to help me manage it at work? I am office based, on the phones most of the day, wfh permanently. I struggle to focus...much as I love wfh I think being in an office helps me as I have the adhd relief of seeing and talking with others. No option to go back into the office ever with my current role and company.
What advantages would there be with letting them know? What can I ask them to do to support me? I have some online resources but can anyone suggest anything that has helped them?
Thank you!