It's possible that your mic could be picking up everything because you're not speaking directly, but it's also probably due to the sound reverberating around the room. This can happen for a few reasons, like where your microphone is placed (too close to speakers) or if the room is highly absorbent. The problem is most common with loud music in small spaces, like where I work at Noise Control Inc. If you happen to have any loudspeakers nearby or are in a small space without much acoustic treatment (e.g., carpet), try moving further away from those sources and see if this fixes the issue.