Anyone experienced a missed miscarriage?

A • expecting baby #1 March 2015!
Hi fellow BFP glow ladies, I am desperately looking for advice. It's my first pregnancy, I am currently 9w1d and for the past 6-7 days, my symptoms have dissapeared completely, i still have slightly sore tata's ;) but other than that.. Nothing! I haven't had any bleeding, but i just have a bad feeling that the baby stopped developping, like a gut instinct about it... I can't sleep and it's all i really think about. Our dating ultrasound at 6w2d showed the baby doing well, heartbeat and all... But i am still very concerned. Have any of you experienced a missed miscarriage and can share your story? Symptoms, feelings, what can I do to reassure myself/double check? I dont have another ultrasound until 3 weeks from now... Thank you!!!!