Why can I not tell if it's just too warm or I'm getting sick?

I don't actually have much in the way if symptoms. A bit of a cough, but that can be attributed to my having woken up yesterday with something having caught in my throat and my lungs overreacting.

The fact that I felt better after going outside and getting some air means it's probably too warm.

Also, the fact that my phone is saying it's 22 here and I'm like, bleh.

Ugh. No tags tonight. Still got a bit of a cough and runny nose. I'm pretty sure it's allergies.