Hi, welcome to the infectious disease forum. I am not a doctor but I am a microbiologist and my opinion from what you said is that no it doesn't sound like meningitis. You don't have a fever do you? I think after 17 hours you would also be getting worse. Sepsis you would have Skin rash, low blood pressure, fever, rapid heart beat. So you don't sound like you have these things.
regards,
mkh9