My baby will be 3 weeks on Tuesday and constantly worry

One of my concerns/ worries is that I’ve always gotten cold sores, maybe one a year .. last time I got one was in March.. but I’ve made the mistake of googling and I’m terrified of the consequences 😢I don’t have a cold sore right now or in the past month.. but I’m constantly checking my lips, washing hands every time I hold my baby and I don’t kiss my baby at all... I even called my doctor for a rx for valtrex.. I’ve been taking if for a week now.. and I’m always checking Babis temperature.. do I have a mental problem?? Is this postpartum??!! I can’t enjoy my baby😢I know the danger and precautions have to be take when a active breakout is going on and just no kissing in the mouth/face.. and advice please!!