Does fasting help?

It seems as though eating makes me nauseous especially if I have to go outside. I avoid breakfast if i have to leave the house. But I have a drink or something (breaking the fast) and some salt.

Would a fasting period help?
Any experiences on that?

My symptoms are mild atm.
Just got out of a 2 month crash of extreme sleeping, nausea, low BP, and lots of muscle pain.

I won’t be trying fasting but I’m just wondering.
10 years ago I’d used to fast so often and it felt so good.

My symptoms started after covid infections.
Not officially diagnosed yet but my doc says it’s probably Me/cfs - long covid