I think there’s something wrong with me

Does anybody else experience severe overthinking and anxiety sometimes leading to feeling a little depressed? And over the most ridiculous things too. Like I literally need reassurance for everything, that everything is going to run smoothly, that everything is perfect and okay and without that reassurance I feel like I cannot function. At the moment my stress is regarding a phone call I need to make, but can’t make it until tomorrow when my child’s daycare opens. I need to phone them to make sure it’s still okay that my child comes to daycare one extra day this week to participate in their valentines party (part time kids are always invited to the celebrations even if it isn’t the day they usually go). The party is on Friday. I already asked two weeks ago and was told “of course she can come”. But now I need reassurance incase they forgot. And I’m feeling so stressed that I have to wait until tomorrow morning to get that reassurance that I’m finding it hard to think about anything else. Like is there something wrong with my brain? Does anybody else experience stuff like this?