Returning to work in an office - feeling guilty about not being there as I'm the Personnel Director

I had surgery to remove endometrial cancer at end of 2025, and then radiotherapy treatment at end of Feb/beg March.

i started doing a few hours work each day at end of Jan, and now do a full day - whilst working from home (with a couple of hours break at lunchtime when I feel tired).  I feel very guilty about not being in the office with everyone and I know that I am missing out on some important discussions.  However, I can still get very emotional when cancer is mentioned, and just want to avoid people asking me how I am doing.  I am the Personnel Director, so also feel that my place should be in the office.