Someone please tell me this is normal

I'm 34 weeks and I'm terrified that something will go wrong I constantly think the drs may have missed something or that something could go wrong I don't understand why I can't just have a happy normal pregnancy I do have very bad anxiety and I have been off my meds since I found out I was pregnant so maybe that could be why ? I've never seen someone worry as much as I do 🤦🏼.