I have the exact same thing. I also feel it at the sinuses above the eyebrows and across my forehead. If I concentrate on it, I can actually make it worse and it usually spreads across both cheeks (right under the eye brows) and down towards my jaw - although it is not pain - it's like you said: a tingly sensation that kinda feels numb but it is not. I use it as a cue to know when I am anxious or not. When I get it, I usually have been worrying about something for most of the day. But it usually takes a good week without any worries for the sensation to go again - but it usually comes back.
When I first experienced it, I thought it was due to a brain tumour - but it was only until I realised that it would always come later on in the day (same with the headaches that I was feeling at the time) that it was due to anxiety. I sat there once with a needle pricking my face a little to see if it was actually numb - I could feel the little pricks though.