Missed miscarriage? #2

Dee
I'm concerned I maybe having my second miscarriage.. I have an appointment on Thursday.. My first miscarriage was a missed miscarriage --there were no signs but the ultrasound w/ no heart beat. I'm paranoid as ever.. I haven't had any of my usual symptoms today other  Han minor nausea.. So I booked as soon as I could. What are anyone's thoughts.. Advice Anything honestly.