Okay, don't panic! If you're really seeing hair fall out that fast, there must be something sudden that's happened. The papillae aren't going to become dead, vellus hair cells overnight, unless you were exposed to something drastic like radiation or a chemical. The shed hairs should grow back once the cause is fixed. How do you feel otherwise?
Just to add my own experience, I started to notice some hair loss on my temples before HRT, and tried using minoxidil. It actually made it worse (notice how it says in the instructions that it's only meant to be put on the top of your head?). I stopped it, and started taking proscar, which helped it come back.
The first thing that comes to my mind is "shock loss", but you say you only notice it in the temple area and only on one side. You should really consider seeing your doctor and get your hormone levels checked, we can only make guesses.