Symptoms gone

I went for an early ultrasound last Thursday at 6 weeks due to a history of recurrent miscarriage. Everything measured on time but it was too early to visualize a heartbeat. I’m going back in a few days for a follow up. Since my scan, my all-day morning sickness disappeared by Sunday and I don’t feel fatigued, I’m still bloated and gassy. I’m terrified of having another missed miscarriage but can’t help but think that’s what’s happening. Any insight? 😔