I'm a FTM and I have no clue if this is something serious enough to worry over or not. For the last three days I've felt my heart start racing and beating abnormally while lying in bed not being active enough to cause this. I'm 10 weeks and I'm guessing it's because of increased blood volume but my mother died because of complications with her heart when she was 45 and I'm just concerned there might be an underlying issue. I'm sorry for the long post but has anyone else experienced this?