baby kicks

Goodevening momshies. Please notice me, i've been panicking about my baby. I'm 33weeks pregnant and today i noticed that he's kicking a little less, is it normal? i'm thinking maybe he's sleeping? last 2 days i had a diarrhea i'm worried if it has to do something about my baby. i may sound over reacting but please bear with me i'm a first time mom. Tia,