I'm over sensitive right?

With how many deaths I had in my family and people I knew last year I always panic when I get a late night text or call. My sister texted me tonight saying "I love you". Well, I over thought it and wanted to make sure she was ok so I called her. BTW it's 1 in the morning where I live. She answered after I tried the second time and she was fine she said she was juts testing to see if her plan renewed. I am so sensitive lately that this actually hurt my feelings. I was sad that she was just testing her phone instead of actually just texting me because she loves me. I'm an over sensitive bitch tonight right?