Could a nurse or doctor advise?

[PowerPantsRule]

I am worried that if I get corona virus I won't go to hospital in time. I am chronically ill which mean I am used to feeling absolutely rotten and often I mismanage my symptoms on the side of laxity.

I have a pulse ox thing I bought from Amazon....what would be the level at which to consider hospital? Lower than 90%?

Having had a baby in intensive care I know they don't like anything under 92 but stability should be over 95

‘Normal’ is perceived as 96+. Do you have respiratory problems?

I'm going to suggest you set your alarm to go off twice a day, and when it goes off you take your temperature and/or pulse. If it its not as it should be, phone 111 or A&E.

How reliable is the monitor? have you positioned well?

I'd check that levels for a baby and an adult are the same, they may be wildly different?