Symptoms fading and I'm freaking out

Last year I had a missed miscarriage. However I knew early on something was not right. I felt like one day I woke up and just did not feel pregnant anymore. Instinctively I knew i was going to miscarry. I feel like I'm having de ja vou .... All my symptoms, cramps, back pain, everything has vanished. I'm terrified, and I don't have my first apt until the 29th. I feel extremely sad today, I don't want this to happen again. I hate this.