Yabu - I have anxiety and depression that I am medicated for and have had a formal diagnosis of since I was a teenager. Ask 90% of the people I work with and they would be unaware of my MH issues.
I work in retail and have been off work for 4 weeks - actually going back in a few days - because I had 2 severe anxiety attacks at work due to the stress of working through lockdown. Because I know my triggers, only 2 people witnessed my attacks as I had managed to get off the shop floor and to a private room before I broke down. Again 90% of the people I work with are unaware of them happening.
My doctor signed me off for 3 weeks and I already had some holiday time booked in so I've been off 4 weeks. My anxiety was triggered by being in work and the stress of dealing with the public and the pandemic and not seeing my DD (I share custody 50/50 with my ex but as he WFH and I was going to work daily we decided she would stay with him full time at the beginning of lockdown).
For the first week I was off I didn't leave the house as I was still getting my anxiety under control - my medication was adjusted and I managed to get a telephone appointment with my therapist which helped me get back on an even keel. By Week 2 I had progressed to going out on short trips for essentials - to do a supermarket shop, to the pharmacy etc - and trips to my ex's to have socially distanced time to see my DD.
Last week I started feeling a lot better and with things opening up I started to go out just for the sake of it- a picnic in the park, a walk along the beach, a stroll through town - and to try and arrange things with friends and family - bbq in the garden for a family members birthday, a trip to Costa to get coffee with a friend for a stroll along the canal, a trip out to a local National Trust property to walk through the gardens and have a socially distanced ice cream with a friend's family etc, went to one of the lakes (I live in the Lake District) to do some wild swimming and enjoying the nice weather.
This week I am practically back to normal - my medication adjustment has stabilised, my MH is back on track, and I am definitely feeling more normal. So by the time I go back to work in a few days, all people will know is that I have been off work for 4 weeks and I have not just been sat in my flat, staring at the same 4 walls 24/7.