Tgrif14

Hi, I'm very new to this software so forgive me if this is a newbie question. While I am recording my podcast the audio sounds fine in playback. As soon as I upload it to any other platform like Soundcloud or BlogTalkRadio.com it sounds very tinny and almost on the verge of giving feedback. This is driving me crazy. I have good quality sound until I upload it anywhere else. Any help would be greatly appreciated. tgrif14