Covid+ mother. What to do next?

- My mother is asymptomatic covid+, age-59 - She's having diabetes and hypothyroidism and taking regular medicines for that. Both unde control. - She's vaccinated with both dose. Got covid couple of days after being vaccinated with second dose. - Showing no symptoms, except for once when she had fever of 99.2, but got ok after taking dolo - LDH, CRP, D DIMER tests done - LDH and CRP normal. D Dimer very high (1900 actual value, normal range is 0-500) - Taking medicines Doxycycline, ivermectin, paracetamol (SOS), zinc, vit c and Dabigatran 150mg (blood thinner) - Doc has asked for retest of D Dimer after 4 days of medicine of blood thinning. - This is her 8th day with covid - started medications Doxycycline and ivermectin after 5th day, Dabigatran on 6th day, before that was having azithromycin, paracetamol, zinc and vit c. - SpO2 levels is from 97-99. Did 6min Walk test (before that O2 levels was 99, after that O2 levels was 98) - Should I be worrying? What to do next?