My mother is suffering with extreme tiredness, She had tested COVID positive on Apr 23rd 2021. Almost for 10days she had this tiredness gradually it had reduced. Since Saturday(May 8th) she's again have severe tiredness, unable to sit or stand for 10-15mins. She's being hydrated, Consuming fruits, electorates and for every 1 hour she's consuming food.. Still the tiredness is not getting better. No fever, no cough, no breathing issues. Her SPO - 99, BP - 114/68, temp - 96.2 Kindly suggest what needs to be done in this case.