You’re welcome! The Sapien team has truly created some amazing fields. I’m very glad it has given you hope! 
My apologies, I just saw your edit about the erythrocytes and feeling like he is poisoned, especially after light sporting efforts.
You can try The Super Human Mutant and Photosynthesis (on Patreon or The Sapien Trust) as well to see whether they help with this.
The Super Human Mutant simulates a few different things which help with energy levels, detoxification and healing quite a bit.
Part of the description from The Super Human Mutant:
So this creation allows you to experience some key mutations (in my opinion)
to understand the feeling of being a super human.
This does not cause a permanent change as it is an energy stimulant and the effects usually lasts around 17-20 hours.
The mutations and modifications are as follows,
Amblox gene and overexpression of it 10
This gene is encoded by atoxyl salamander, which allows them to regenerate any part of their body.
Photosynthesis allows you to absorb light as energy and possibly use less oxygen and food. It can be very helpful for energy levels and healing processes. The ability to use less oxygen may help quite a bit with the lack of oxygen from a lack of erythrocytes.
From the two Photosynthesis descriptions on Teespring and Patreon:
This basically causes you to absorb light and use it as a direct energy source for normal functions.
Its even possible to find you use a lot less oxygen and food. You even feel strongly energized, all natural capabilities also seem to grow.
This can be a bit intense for some.
What this does is create a temporary energetic addition to you body, which allows you to be able to conduct a form of photosynthesis, it will work for a day or two then start to fade, you can always refresh by re-listening.
It will directly draw on light to your mitochondria (in effect this is sorta like a chloroplast) it will carry it throughout your body, which is harder to do as a human, as you are not transparent and light wont pass through naturally.
So basically you will employ light, especially sunlight as an energy source.
You my not feel hungry with this sometimes also.
You can also try playing Atmospheric Vibration Raiser and The Negative Ion Generator, or using the Negative Ion Creator mandala from Sapien’s Instagram, for your home and sleeping area as they could help with energy levels and creating a healing environment too.
It would be amazing if his values stabilise. We’re cheering for you! I wish you both the best of luck and I’m hoping all the best for him. Let us know how it goes!