Baby kicking

Is it normal to have some days where you don’t feel baby at all? I’m not sure if I should contact my midwife. I’ve done two kick counts and have had ice cold orange juice to drink. And I’ve laid down for four hours and have only felt it kick once. I’m 25 weeks and I’m not sure if I should be concerned. I’m also experiencing severe lower back pain in the right side that won’t go away for the past couple days. Not even chiro or a massage has helped my back pain.