@potterylady You seem to have thought of a lot of things and know who to take care of yourself. Here (yet another) article to help you know what you might expect, although everyone is different.
- What happens to your body when you have COVID-19? https://newsnetwork.mayoclinic.org/discussion/what-happens-to-your-body-when-your-have-covid-19/

Here are some of things that I might get set up if I were coming down with a flu and alone:
- Arrange for a neighbor to be on call to shop for food or medication if necessary
- Have plenty of liquids on hand, like water by the beside, tea making items out on the counter, thermos flask to keep tea warm
- Ensure pathways between kitchen, bedroom and bathroom are clear and unobstructed to enable easy mobility
- Have extra blankets on hand if you get chilled
- Keep your phone charged and near you at all times in case you need to call someone or 911

I hope you hear from your doctor today, so that you can create a plan together of what to do if the symptoms worsen and need medical attention beyond what you are able to provide for yourself. Be sure to ask her which symptoms require her attention or emergency attention.

Do you have any previous or underlying lung issues, such as asthma, allergies or anything lung related?