A friend took his father to the ER in the next bigger town, sent there for admission to the hospital from the clinic. His father is in his 90s, has heart failure, and his legs were puffed up like balloons with weeping blisters.
They were in the ER for 13 hours, never given food though it was promised, the staff couldn't even find time to bring a urinal and his father was not admitted. He was sent home. No beds. On divert.
Ok, so when should you go to the hospital right now? Only if you really really can't breathe....
First, emergencies. Gwenllian talks about "happy hypoxia" where people do not feel bad but have an oxygen saturation of 50%. I suspect that this is when their lungs really are swelling shut very fast. They will turn blue quickly. Call an ambulance. In the 1918-1919 influenza, soldiers "turned blue and fell over dead". In Ralph Netter's book on pulmonary diseases, he has a drawing of the lungs of a person who died from influenza pneumonia. The lungs are basically one big red purple bruise with no air spaces. So if a friend is goofy and their lips are turning blue: AMBULANCE.
The one in five hospitals that are 95% full or more in the US are now cancelling all of the elective surgeries: knee replacements, hip replacements, non emergent heart surgeries, all of it.
If you are not dying, do not go to the emergency room if you are in one of the totally swamped areas.
So how to care for yourself with covid-19? Like influenza, it is pretty clear that it either causes lung swelling or the lungs fill with fluid or both. With lung swelling you may be able to stay home. First take your pulse. If you have a pulse oximeter, great, but no worries if you don't. Count the number of beats in 60 seconds. What is your resting heart rate?
If it's 60-100, that is good. It's normal. If it is 120 at rest, that is getting worrisome. If you are short of breath at rest and your pulse is over 100, call your doctor. If they can get you oxygen, you still may be able to stay home. If not, emergency room.
Now get up and walk. Do you get short of breath? Sit back down and again, count the number of heartbeats when you are sitting. If your resting pulse was 90 and you jump to 130 walking, you have lung swelling. Functionally you have half the normal air space and so your heart is making up the difference. How to cope? Well, walk slowly. Walk during the day, do get up because otherwise you may get a leg blood clot, but really minimize your activity. Now is not the time to rearrange the furniture. Also, you may not go to work until your walking or loaded pulse is under 100.
If your pulse does not jump up when you walk, next try walking loaded. That is, carry something. Two bags of groceries, a toddler, a pile of books. Go up the stairs. Sit down and take your pulse when you are short of breath or it feels like your heart has speeded up. I am in this category. My pulse is 70, oxygen at 99 sitting. Walking my pulse jumps to 99. Walking loaded my pulse goes to 125 and my oxygen level starts dropping, need oxygen once it gets to 87. I tried a beach walk without oxygen 3 weeks ago. I photographed the pulse ox when it was at 125 with O2 sat at 87. I still need oxygen.
The treatment for lung swelling is rest. This is my fourth time, so I am used to it. Some people will have so much swelling they will need oxygen at rest. If the lungs swell shut, they need to be intubated or they die. Suffocation is not fun. The other treatment is not to catch another virus or a bacteria on top of the present lung swelling. Wear mask, get vaccinated, put out the cigarette, no vaping, pot is terrible for the lungs too and increases the risk of a heart attack.
With my four pneumonias, the first two made me tachycardic and it took two months for the lung swelling to subside. It sucked. Inhalers don't work, because they work by bronchodilating. You can't bronchodilate swollen lung tissue. The steroid inhalers might help a little but they didn't help me. The third pneumonia took 6 months to get back to work and then I was half time for 6 months. This time I am five months out today and I still need oxygen. Darn. Don't know if my lungs will fully recover. They may not. They are improving: at first I needed oxygen just to talk. Now I can talk without it, but I still need it for walking, flute, singing, carrying anything...
So: rest. Good food. Avoid substance abuse. Mask all visitors and don't go to parties/raves/concerts/anything. Get vaccinated. Oxygen if needed and if you can get it. A cat purring on the chest helps me... though my cat died over a year ago. Cheap respiratory therapy. You will have to be patient: two months. Six months. Eight months. Whatever it takes.