You might need to go to the ER. Feeling very ill, with nausea and passing out, needs medical attention to know what is happening.

If it is pancreatitis, for example, it could require no food or liquid by mouth, only IV fluids

Caffeine, limes, ginger, and peppermint are all stomach irritants, so I would use caution with them.

There are programs within hospitals that can help with all or most expenses for someone with no insurance.

I really feel that you need medical care at this time.