I need advice. I'm going to see a doctor only tomorrow! It's been pr…

I need advice. I'm going to see a doctor only tomorrow! It's been probably three days now that my lower abdomen hurts very badly, especially when I lie down (like during my period). There are no unusual discharge, blood pressure is normal! And at night it's awful, not sleep, I fall asleep normally and then I walk all night, I go for a whole night, maybe two hours in the daytime and also at night like this!