Sick at bedtime..?

Morgan
For some reason for the past few weeks around the time my husband and I lay down to go to bed in the evenings, my stomach always gets very nauseous. My husband has noticed it gets a little bloated too. But does anyone know what causes that? I'll be fine during the day but when it's time for bed I get so sick feeling that I can't stand it. Any ideas on what is wrong with me??