and dizzy, nausea, sweaty feelings are common symptoms of
hypoglycemia aspects
of diabetes. The frequent urination and weight loss and others are common
symptoms of hyperglycemia aspects of diabetes. Only a physician can determine, for sure, if you have diabetes, pre-diabetes, or something else altogether.
If your current physician was only willing to test you for anemia (are you being treated for that?), then I recommend you choose another physician for a much more complete workup.