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.
Well there is some anecdotal evidence, in one case, a man reported taking 6-8 grams/day of creatine for about a year with no problems other than occasional diarrhea. He stopped working out and taking creatine for about 6 months while recovering from rotator cuff surgery.