How’d you have your son did have a dad

If you have covid, looking after a one-year-old would be almost impossible.
It sounds like your son has a stomach bug. Just water and plain Ryvita dry biscuits would be best until he gets over it.
But maybe it would be safest to see a doctor for a diagnosis.
If you prefer natural medicines, you don't have to take the doctor's prescriptions. You could see a naturopath for advice on treatments.
No family, no friends, no friendly neighbours?
Could you reach out to a local charity?
Where is your son's father and his family?
Or are they not the right types to be carers?

Awww, I've been there - just lied there with a fever on my then not quite 1 yr old 's bedroom floor and let her just crawl around and play while I rested thr best I could.

Hang in there! I hope you feel better soon.

I felt like that about a week or so ago . Penicillin for 10 days and a cough medicine mended me .

I'm sorry ☹️ wish I could help

At least remember this....everything you said indicates you are an OUTSTANDING mother.