Help up until recently everything has been fine but now i realise when im on TTT and i walk i cannot talk at thre same time and if i talk i cannot walk it's using the x key. and if this means anything when i try type something then i press w then x at same time it acts as if ive pressed enter. ANY help would be appreciated.

Help up until recently everything has been fine but now i realise when im on TTT and i walk i cannot talk at thre same time and if i talk i cannot walk it's using the x key. and if this means anything when i try type something then i press w then x at same time it acts as if ive pressed enter. ANY help would be appreciated.