So, you used my shot-glass, overnight method of making CDS, but with 1/2 of the ingredients, and using 50% citric acid instead of 4% HCL. That should work fine to make ~3000ppm CDS. Although my original recipe used 12ml of each ingredient into 240ml of CDS water.
Dilution of 1ml of CDS with 240ml of water is more than enough. Usually 120ml of dilution water is enough, especially with such a low dose of CDS, only 3mg of CLO2.
The reason you both experienced throat and stomach pain could have been caused by a fungus/mold problem. If so, then follow Jim Humble's suggestion to use clay to remove it, then try CDS again.
The Mold/Fungus Protocol starts on page 99 in the MMS Health Recovery Guidebook.
Let us know if that works. Thanks!