I had the same problem in the open plan office at a former employer. A vicious circle sparked by me getting upset from a family related issue, and amplified by the manager opposite.
The more he would start interfering and observing me, the more upset I would get. It became a matter of getting him to leave me alone, so that I could calm down.
Once I did that, it all went away. Yes, his actions, presumably 'for my own good' caused me to get severely distressed.
Open plan offices are a surveillance and privacy nightmare already, without the need for any cameras at all.
The more he would start interfering and observing me, the more upset I would get. It became a matter of getting him to leave me alone, so that I could calm down.
Once I did that, it all went away. Yes, his actions, presumably 'for my own good' caused me to get severely distressed.
Open plan offices are a surveillance and privacy nightmare already, without the need for any cameras at all.