reduced movement at 24W 5days

Alexis
So my baby has had lack of movement for what will be the fourth day now, I can still feel her move just no where near as active as she was before?... I had an appointment with the midwife yesterday and she said baby's heart beat was good and everything was okay, but she did say that baby's head is positioned under my rib cage whether this affects her movement I don't no? Yes it put my mind at ease knowing her heartbeat is good and so on but the fact she's not moving like she was worries me? 
Am I being paranoid or should I keep an eye on it? FTM here 🙈 
Thanks😊xx