Pregnancy Symptom?

I’m 10 weeks pregnant and have diarrhea every night almost around the same time. It comes after my morning sickness time which starts around 4pm. I’m fine all morning and noontime but once 4pm hits, I’m nauseous almost all night until I go to the bathroom. And then I’m starving at like 9pm because I hardly ate dinner. But it gives me cramps and hurts to go. Sorry it’s tmi but I’m wondering if this is a pregnancy symptom and normal or not?