Anxiety

Is it normal for me to be completely freaked out about a mis carriage? I was 5 weeks and went to the ER for cramping and they misdiagnosed a miscarriage. I went to have an ultrasound done at 6 weeks and I got to see the baby and heart beat. But im still so paranoid! I never want to relive that week of crying and being devastated. Every weird pain I feel I freak out. I feel like I can't even be excited until I'm out of my first trimester. I'm 8 weeks and 3 days. I just want to feel normal and be happy! I haven't had any bleeding except one time I spotted after sex. Everything else has been perfectly normal. Help:(