Teething and horsey voice

My little girl is 6 months, she has just started teething about 2 days ago, I noticed this morning that her voice has become horsey. She don't cough or cry. She eats and drinks the same amount as she did before. Nothing in our routine has changed, no different food, milk, washing detergent, baby soap, nothing.

Is this normal for this to happen or no?

Has somebody been through this with their little one?

I'm just worried as I've read some things that people have posted on different sites and webpages and don't like the sound of what they are saying as they sound scary, I have booked an appointment with the doctor to see her Friday (as that's the only time they had).

Is this just to do with her teething or is this something more... some one please help!!