I had pretty much the same symptoms down to the tingling cheek when my anxiety was at its worst... in the mornings, I would hold on to stuff to help me get to the bathroom. I could walk in a straight line, I just felt like the floor was randomly dipping in places or like it was slanted. I looked fine while I was walking to other people, but I felt really weird. Stress and anxiety can cause parts of you to go numb. I've had it happen to my arm when it was the absolute worst (that didn't last long, thankfully), but my cheek had that weird tingly feeling and I had annoying pressure in my head for a little over a month, until I was able to kind of control my anxiety. Focusing on your body is what's making you hyper-aware of these sensations.