At home covid test

Has anyone had the right results with this?

I took it yesterday after a day of headaches and nausea

And yesterday was body aches and tummy issues all day

Now my mom is throwing up with tummy issues

And I have a sore throat and coughing

But test is reading negative.

Granted there is more than covid out here but I may go get a test from a doctor.

Anyone have luck with the at home ones?