How do you know that you need to go to the hospital? any NURSES availabe?

I am not a nurse and I know you wanted a nurse to answer but I am a mom, and human being who gets sick too, I suggest you got to the hospital even though you don't want to. It is obvious that you need to hydrate and be examined by a doctor. They can run tests to help you figure out if this is a short term thing or a long term illness that needs to be nipped in the bud before your condition worsens, you don't want to wait until you are not mobile at all and can't reach for the phone, besides ambulance bills are costly and are never fun.