waking up in the middle of the night sick

Mimi • Momma bear 🐻 expecting her second cub💙.
So for the past couple of weeks I've woken up in the middle of the night or from a nap and just get so nauseous especially for I eat certain food the nausea is becoming worse. I thought you could only have morning sickness or morning nausea? Going to the doctor next Friday! I have cramps back pain Nausea and very emotional I'll literally cry out of no where, my grandma told me Last night she thought I was pregnant so maybe I'll go buy a test in the morning but I thought nausea was only in the morning is that true?