I had a partial hysterectomy 17 months ago. Is it possible to be pregnant and not know it? I ve been gaining weight fast and stomach cramps,irregular bowel movements,overactive bladder,nausea,heartburn,shortness of breath,headaches,ovaries cramping like a period. Extremely hungry and thirsty also possibly unrelated the fingertips on my left hand tingle and burn when my hand is closed for to long or gets cold the blood vessels bust