Bad anxiety !! Anyone else

So FTM my babygirl is 9 weeks old. And I have daily anxiety over her and her being healthy. If anything changes in the way she acts or eat or pee and poops I have anxiety. She got shots Saturday and that brought an all New level of anxiety cause she had a low temp. I know that’s normal. Her eating the last week has been crazy and all over the place compared to what it was. And today she has had 9 bottles so far and I’m sure will have 1 more . Eating 1-3.5 oz at a time ever 1.5-2.5 hours. Am I being overly anxious or is this all normal for first time mom? Her 2 month visit Saturday her doctor said she’s perfectly healthy and is on track with development but I still have this crazy anxiety.