So, you're allergic to dust as well? I always make sure to wear mask and spray water before cleaning to avoid dust. When I clean, I either get really sick for weeks or have itchiness. It can get quite annoying that it happens. I hope you are better now.
I personally don't like deep grey as a room color as it looks pretty depressing and according to color psychology that is the negative connotations to it but perhaps lighter grey would be nice as it shows neutrality. So, if you really want it grey, go with lighter tones. Fengshui is more about furniture replacement. and how energy affects it. For example, your chair of workspace should not be placed blocking the door or facing the door. As it would mean that you are blocking the energy of wealth. You can check this out https://www.healthline.com/health/feng-shui-tips-for-your-office#your-office they also have some color options like sandstone, yellow,pale gold, orange, and white is also acceptable.
Honestly, sleeping on the floor is removing my backpain more than sleeping on bed but it's nice to read on a comfy padded bedding which is a reason why I also have the bed. My mom is also often visiting and I can't let her sleep on the floor like me 🤣
I hope you have a great week ahead!
I will take the water spray strategy into consideration, I hadn't thought of it Mac. Yes, I am too allergic, now I have a serious problem because I bought 3 gallons of dark grey paint for that wall 🙃, is that covering that red color was going to be difficult 🥲, but I intend to only put that wall like that, the others, one has a window that takes up half the wall and the other 2 are white, I will look for white curtains and try to lighten everything else 🥲, I have no choice🥲. I'm going to read that post and I definitely need to change my desk room.
Happy week to you too dear @macchiata.