Good Morning New Mother and again Welcome to our wonderful forum.
I hope you are become more relaxed with these feelings and your anxiety has decreased some with the Valium.
All new mothers are somewhat anxious. Being a mother is a new role, a new job, with a new person in your life and new, responsibilities. Anxiety in response to this situation is very common. Pediatricians, obstetricians, and nurses are used to worries, concerns, and questions like yours.
I went through some of these same symptoms years ago when I had my first. I cried, thought my life was over as I had now done everything and I had this colicky baby that cried all the time.
Please talk with your physician...........you are going to be ok, so let us help you through this new experience in your life called change.
Gentle Hugs