It's probably the change of temperature or atmosphere in your room that's setting it off. That's why I said see a doc, because it sounds to me like the membranes in your respiratory tract are very sensitive due to the previous infection, and need calming down with a steroid spray.
Okay mate if it still persists ill ensure i do...it definately does not feel like its all in my throat, as i said, feels more like after running.
Thanks a lot