My son is REALLY moving tonight, think he is trynna get head down or something... was cool for like…

My son is REALLY moving tonight, think he is trynna get head down or something... was cool for like 10min but doesn't feel good now. I haven't been able to go to the bathroom for a couple days and it hurts so bad to try right now. I hope this is all normal but I just can't remember... Not any serious pain just extremely uncomfortable and I am not having it. I am so happy to have an appointment tomorrow with my OB.