What caused these symptoms: dry nose that feels irritated when I breathe, then a bloody nose and feeling?

Question

faint with a headache. I woke up in the middle of the night sweaty 2 times so far, and I still feel faint.
This started 4 days ago. The weather fluctuates between warm (and dry) and cold. I have the air conditioning on auto when I sleep (so the temperature is the same at home).
I don't have any known health problems, I eat healthy, work out, but I drink a lot of juice.

Answer 1

these symptoms are caused from dry air
if you are faint with a headache and wake up sweaty
it sounds like sugar problems=dont wait to long
to see the Dr

Answer 2

Sounds like your getting a cold. An AC dries up the air so the mucus in your nasal passage dries up. That is one of your body's defences to keep bad things out.
Try a humidifier in your room where you sleep.
Vitamin C helps your immune system.