I had a dry burning sensation in the back of my throat, but now i have thick green and brown mucus in throat, still dry, bad taste, yellow tint tounge?

Run-of-the-Mill: Sounds like you have what i just got over. No biggie. You need more fluids and brush your teeth and tongue twice a day. You may develop other symptoms too, like a cough and headache but it should all blow over in a week or so. Over the counter cold and cough meds should help. If getting progressively worse, however, then you may want to see a doctor, especially if a high fever develops.