I need clarity, please help

I'm anxious that mv LDR boyfriend hasn't been responding to my texts for 2 days. Am I overthinking or is it time to let go? We've been dating for 2 months.

My boyfriend and I normally text every day. A few days ago, he sent me a voice note saying his phone was having charging problems (it kept saying there was water in the charging port), he was busy taking care of family and traveling between cities. In the past, when he says he is busy, he would usually still take his time to respond to my texts, even text me in another/different platform if he cannot use our main one. He ended the voice note by saying he loved me, missed me, and that he would never ignore me. Since then, I haven't heard from him for about 2 days. What makes me confused is that his last message was very affectionate and specifically mentioned phone issues, but the silence afterwards feels stressful. I've always been an anxious person, so I need a second opinion.