Does PCOS symptoms come and go?

I have not been diagnosed, but I do believe I have PCOS. About two years ago I was having symptoms such as being really tired upon waking craving sugar, trouble losing weight specially in the abdomen facial hair, growth on my chin, etc.  Fast forward two years and symptoms were not as severe but a couple days ago. All of these came back. I wake up starving and craving especially sugar. I get hungry really quickly even after eating a meal and the cravings are just so intense. I am completely exhausted all day and cannot do anything. My question is do you ladies with PCOS do the symptoms come and go. Do you have like flareups? I'm hoping this passes.