I have pain in my lower ribcages, any ideas of what it might be?

Every night I am waking up at 3:30-5:00 in the morning. I am having pains on a scale of 1-10, 10 being the highest, a pain of 8. The pain is only on the sides of my lower ribs underneath. It's only been this way the past week. Any thoughts or advice as to what to do or what it is? thanks