Does the worry ever let up?!

First time mom here and constant worry is consuming my life. I’m constantly in a state of anxiety and worry that something bad is going to happened to my baby. That he’ll become sick or suffocate or choke. Constant horrible scenarios run through my mind and I’m wondering if that’s just normal new mom fear or if maybe I should reach out to my doctor? I realize worry is a normal part of being a momma but this seems excessive but I can’t turn it off. 😣 Has anyone else gone through this? Has anything helped or has it gotten better?