Standing up v laying down/sitting

Does anyone feel a significant difference in baby’s movement while sitting or laying down versus standing? Im 26 weeks and have been working (serving) again but I feel like it’s harder to feel her movement standing up. It’s making me not even want to work anymore because I’m scared she’s in distress or worse. I’m so used to feeling her flip and move around being in bed or studying, but now I’m working 8 hour shifts on my feet and can only feel a kick here and there. I’m so scared I have an appointment Monday but I’m just so paranoid.