Shivering type movements

Hi everyone I’m 32 weeks pregnant and this sounds so weird but for the past few days when they baby is on the move sometimes for a split second I get a vibration/shaking movement from the baby, it’s so weird it feels like a quiver and only lasts for a second if that, has anyone else experienced this or know what it can be? The only way I can explain it is a strong vibration or shaking movement for a second. It’s definitely not hiccups as she has these and it’s a completely different feeling as hiccups are much slower than this and last a lot longer.