Did my 727 just die on me?

I took my car for a drive today. Everything was good when I left the house. about 2 miles down the road I had to slow and turn onto a different street. When I turned the car downshifted to 1st (normal for this turn). When I went to accelerate, the cars rpms just kept climbing. I looked down and I was at 4k and still in first gear. I let off the gas and the car shifted into 2nd. Hmmmm that was weird. So I accelerate again and same thing. As soon as I let off the gas the car shifted into 3rd. I immediately headed for home. I did the typical checks and decided to take it around the block one more time. It felt even worse, this time taking longer to shift into the appropriate gear. Reversed seemed normal each time. Except, I've noticed a hand full of times this year (and today it happened again) when I backed it out of the garage after first starting it the car didnt move. I had to give it some gas and it sounded like it had a whir, but went away as soon as it started to move.

Now to cover everything, yes I have the proper fluid level, no it doesnt smell burnt and I dont see any shiny flakes in it. I checked the kickdown cable (lokar) and its hooked up like it should be, and moves freely and not hanging up, I am not leaking any fluid. I checked my front band adjustment and there is no tension on the adjuster. I threaded it until the head was almost flush with the case. Im wondering if my front band broke?

I've read about a 2-3 flare up issue, but this was all 3 speeds. Thoughts?