I woke up with a horse voice no fever no sore throat air went out in the house had to use big fans to be able to sleep. i also got into a cold pool at like 12 last night and woke up at 4 am coughing what could this be should i be worried?

Horse voice: Exposure to water, up late and running a fan. All can be things that irritate your vocal chords. Drink fluids and be careful with your voice for a few days (no yelling). This should recover in a day or so. Now if you would develop a fever, worsening symptoms with rest or stridor get checked.

Common cold: Check your temperature and flood your body with fluids, steam shower, tea and dark brown honey, and consult your PCP.