Back to work...butthurt begins in the chair

I received this wonderful "welcome back to work" after my medical leave from my ace IT staff...thank you! Nice to be back. Trying to be mindful by taking breaks from sitting too long; I'm walking around the office for a few minutes to rest my spine every 30 min or so.

I think I might need either a device to raise my laptop so I can work while standing, or some sort of table, because sitting in a chair (albeit a nice adjustable desk chair) is just torture on my spine for more than a half hour. I'll have to ask about that with the powers that be.