I Have Severe Nausea No Vomiting. My Stomach Is Distended.

I have severe nausea no vomiting. My stomach is distended. I'm only semi-comfortable in bed. intermittent pain in side and lower back. Can't even eat or move around it makes it worse. I am drained from this. it wipes me out. This is not first time. Has happened 3 times since last Thursday. Phenergan is only drug like that I can take. Thanks I am miserable like this.