With the blood ox - are you taking several readings at rest, different fingers, wiggle it about a bit on the fingertip before resting to take the reading. Doesn’t sound scientific, but will mean you can find the best reading - which is what counts. I usually end up taking 5-6 readings, it’s the highest one you need. Gets better if you lay down and take it while resting. Take 3 times daily for the first two weeks.
As @aroogah said - we’ve had it. Positive tests. I had fevers for 48hrs then cold/flu symptoms and oh ... so very tired. Loads of sinus congestion, not really a blocked nose. Cough but not too persistent, a bit of a wheeze. Headache. Started turning around after week 3. Had 2.5 weeks off work. Dr prescribed me Zinc (double daily dose), Vitamin D, and I also took hydroxychloroquine for 5 days early on. Also the usual cold/flu meds. Since have had a steroid nasal spray to clear the congestion. Overruling thing has been fatigue. No loss of smell/taste though.
Week 4 I finally started thinking about tomorrow rather than bearing with today, and feeling tired about yesterday. Colleagues say that the fatigue is the thing that lingers.
Do keep an eye on blood ox levels as they seem to be the thing that can give a heads up if you need scans or hospital treatments.
And drink plenty water - I’ve found I’ve been way more thirsty the past month. Have those hot/cold beakers by the bed that gives a welcome cold blast of water when needed during the night.
Also - those breathing exercises, can find the link if you need. Keeps the deep lung function, to prevent covid creeping in there. The scary comment from my GP early on was ‘once it has you, there isn’t much you can do’. Follow any advice you can get.
*hydroxychloroquine has polarised views, not all gp’s will prescribe for covid, it’s an anti-malarial, possible positive covid subsequent effect of hospitalisation needed, but (usual) low side effects of you do take it. I have taken plenty anti-malarial’s in the past so figured it wouldn’t hurt to take it. Had some minor side effects but nothing more than a day or two.