By day twelve you are definitely not at a viral stage bu more likely in a bacterial phase or cytokine storm .
Can you get a script for steroids used to open airways? Increasing your blood oxygen will keep you out of hospital. Also add one aspirin a day against blood clotting. Re drinking: tonic water or tonic syrup + water, however you like to organise getting some quinine. It is very relieving. I recommend several glasses in the evening. Do you have filtered water? As KimJung-Un electrolytes help. Look for Magnesium, Salt (NaCl), Potassium and then also trace iodine etc. My filter has a mineral tablet in it which is helpful.
Magnesium tastes sweet, Salt tastes a little sweet, not salty, and Potassium gives a sour twist. Water should taste soft and more-ish, not like a wild, fruity soft drink, which can mean one is over-concentrating the minerals and dehydrating. Try also dissolvable aspirin in a full glass of water, or a dash of cider vinegar in water. Don't skip on coffee and some orange juice if that's what you usually have, no sense in going into a caffeine withdrawal right now. But watch out with more than a small glass of orange juice as high blood sugar is a comorbidity. Kinda lay off anything sugary, actually. Do also try to limit alcohol for same reason, although some swear by it LOL.
What vits are you taking, any bioflavenoids? Do you mind me asking? Note that traditional homemade chicken soup can prove to be high in quercetin, minerals and instant absorbable fat and vitamins A & D, especially if you start with a free-range chook. Do you have access to ivermectin, which I found can help even in long covid situations (case was three weeks post vax and suffering, but picked up within 2 days after IVM)? Twelve days in, is prolly too late for Hydroxychloroquine, but it can't hurt IMO.
Keep gargling and rinsing nose, as a 3x daily personal hygiene mission. And become a vessel that has to go to the bathroom a lot. Pee-ing is your friend. BTW. I am not doctor so do your own research.
Can you get a script for steroids used to open airways? Increasing your blood oxygen will keep you out of hospital. Also add one aspirin a day. Re drinking: tonic water or tonic syrup + water however you like to organise getting some quinine. It is very relieving. Do you have filtered water? As KimJung-Un electrolytes help. Look for Magnesium, Salt (NaCl), Potassium and then also trace iodine etc. My filter has a mineral tablet in it which is helpful. Anyway magnesium tastes sweet, Salt tastes a little sweet and Potassium gives a sour twist. Water should taste soft and moreish, not like a wild soft drink, which means you are concentrating the minerals and dehydrating yourself. What vits are you taking, any bioflavenoids? Do you have access to ivermectin, which can help even in long covid situations?