Freaking out! The flu?

Elizabeth
So yesterday I felt a good bit off. I was sore all over and had tons of brain fog and a headache. I went about my normal routine, though. I went to bed and started feeling really bad. I woke up and felt extremely horrible. I'm achy all over and it feels like someone has cracked my skull open. I'm now freaking out. I kissed my LO. She's eight months old. She played with my phone while I was in the shower. Ugh! I'm so worried. One good thing is that she is on amoxicillin for an ear infection so maybe she won't get it? Hubby is going to stay home and care for her as I recover. How could I not know? I'm like in tears. What if she dies from this? I cannot imagine or even think of it....