Symptoms of diabetes that come and go

Hi everyone,

I’m a healthym 19 year old female and a college freshman. For the past couple of years, I’ve had bouts of symptoms of diabetes that have all disappeared on their own. I’ve gotten tested, and have been told that I’m fine.

But I’ve had:

Frequent urination
Excessive thirst
Excessive hunger
Itchy skin
Yeast infections
Fatigue
Dizziness
Nausea

Lately, I’ve had almost all of these symptoms…but I noticed something. It occurred during the week before my period which is a fairly common time for them to pop up as I’ve noted before. Is there some reason for this?

Also, after I eat, I tend to start feeling pretty awful, especially if I had something with lots of carbs. What gives?

And finally, should I get a meter to keep track of my sugar when I’m having symptoms?