most of the time this will hit you for 24-48 hours.

Here's what I suggest if you haven't already:

treat your symptoms! if you have a fever, use a fever reducer, make sure you are getting fluids, and if you're having a hard time keeping them down, use pedialite - that'll help keep you going.

Also - be sure to keep things tidy and clean, reinfection can happen! clean up after yourself, and be sure to keep your hands as clean as possible.

The amount of time you've been sick is out of the ordinary - I would highly suggest contacting your PCP or any healthcare professional as you might be experiencing something else entirely.