I discovered this by accident ! I had a heat pack onto my belly coz I had some pain like period pain and when the heat pack got too hot for me I took it off and the baby went crazy!! Then it settled down, and I needed the heat pack back on again. Then again it got too hot and took it off and the baby went crazy again. So I just kept playing with it till the baby got bored of it.
Try that, maybe that will help. I've got a kick chart from my hospital and I notice that in the last 4 days I can't make it to 10 in 12 hours. Mainly it gets up to 7-8. I found after the 12 hours is up, I'm on the couch with my feet up and it starts dancing then.

hope this helps. If your worried go to the emergency dept of the local hosp and they'll look after you!

Good luck