Help please

So I’m 32+3 today.

I also have gestational diabetes.

Yesterday I had horrible pain under my left ribcage, like to the point I couldn’t hardly sleep last night.

Today, I’m having horrible belly pain, like someone is stabbing me. I’m nauseous, I can’t stop peeing, I can’t eat..

I literally have no appetite. I tried to make myself eat some lunch so my sugar wouldn’t drop but I could only eat about 3 bites and had to stop. I’m also having lower back pain as well. I’ve felt baby moving and I go to the doctor at 4. Has anyone else experienced this?