No, your reception is fine. What you're experiencing is sound attenuation, the loss of energy from sound waves. Basically, attenuation is a damping of sound, an interruption that diminishes the volume and quality of the sound wave.
No, this is not necessary. A mere 3 grams of creatine per day for 28 days results in the same muscle content of creatine as that of a six day load program. Thus, if you wanted to get off creatine, it would take about a month to reach normal muscle stores.
You can use it before or after your workout, or anytime throughout the day. If you've been using creating for a while, 2-5 grams once per day will do the trick. If you just started taking creatine monohydrate, you can load your muscles with 20-30 grams of creatine per day for 4-5 days.