Slept on my back, haven't felt her kick all morning...

I'm 24+4 and Last night I woke up on my back just about every hour.. I would tilt my hips to where I wasn't quite on my back, but I kept waking up flat on my back no matter what. I've been up for about 4 hours now, and I haven't felt any kicks.. Not even a flutter. Usually when I put on my belly band Baby Reign kicks like the dickens, but nothing.. Not even when I ate or drank.. I'm starting to worry.. My dr is 2 hours away, I need advice ladies..