Could it finally be?

My period was only one day last month. It was extremely painful (due to PCOS) but only lasted one day. I skipped this month. This past week I haven't been able to keep any food down but crackers. I've been so sick I'm afraid to eat anything. My husband is worried but notices that I feel 100% better after throwing up. Should we test? And any idea how to get me to keep food down? I miss food.