Is there a mic switch on the headset you're using to record? Is it on? I'm not calling you dumb, I just know I overlook simple things sometimes. I'm not sure where the hangup could be. You tried this headset on another system? Or whatever mic you're using?
-hax0rmort
MOBO - ASUS ROG Crosshair V Formula-Z
CPU - AMD FX-9370
RAM - AMD Radeon R9 Gamer Series 16GB (2 x 8GB) 2400 MHz
SSD1 - Samsung 840 EVO 250GB // Boot
SSD2 - Samsung 840 EVO 250GB // Game
GPU1 - ASUS Radeon R9 290X
GPU2 - ASUS Radeon R9 290X
COOLER - Corsair H100i AIO Liquid Cooler
PSU - Corsair RM Series 1000W Gold PSU
AUDIO - Creative Sound Blaster Z
CASE - NZXT H440 Red/Black
KEYBOARD - Corsair K95 RGB
MOUSE - SteelSeries Sensei
HEADSET - Logitech G430