Insomnia and nausea!

Kesha • I have 2 kids, they are now 16 & 7. I have 2 step children that are 16 & 11. Hubby & I are expecting our first together.
Anyone else up at 4AM nauseated and can't sleep? I'm so exhausted but every time I lay down I feel like I'm going to throw up. Tried propping pillows and sleeping sitting up but can't sleep like that. Tried sleeping sitting up in the recliner, can't get comfortable...help! Anyone find a solution to this problem?