I have Plantar Fasciitis and it is killing me.

I totally understand - I have plantar fasciitis with a double heel spur, and I got to the point where I could barely walk as well. You need to see a podiatrist, maybe get a cortisone shot to reduce swelling, a boot to sleep in to stretch out the plantar fascia, and orthotic inserts for your shoes. They're expensive, but they will absolutely make a huge difference. A few months ago, I could barely walk - with the boot and the orthotics, I'm running over a mile at a time.

Until then, freeze a water bottle, and put it on the floor, rolling the arch of your foot back and forth over it, to ease the pain and reduce swelling. And as often as you can, keep stretching by grabbing the big toe and pulling back, with the foot fully flexed.

Good luck!