grinding problem

[DreamSpeedPerf.]

ok so i was stuck in this wonderful miami traffic and i start hearing a hissing sound coming from my tranny area..then it started getting a little louder but would go away when it shifted to second. so i thought i would go home and check it..but as i started getting closer to my house it started getting worst to the point where it wasnt shifting and when i would stop and start moving its was grinding mad crazy. so when i got home and put it in park all you hear is metal grinding so i think it might be the converter..so i let it sit for a minute. and went outside,started her up and its like nothing ever happened. mind you that thing sounded like wwii was going off in my pan..please help me out hear im completely lost..i just put the tranny in like two weeks ago after blowing my last one

[DreamSpeedPerf.]

bump
So, today it started doing it again..i think my tranny is overheating because it started about ten minutes after driving it. although i dont understand because i have it running through the radiator and an extra tranny cooler. also after i drive it and turn it off for a minute and turn it back on its back to normal. to me its like if the fluid is foaming up maybe i need better oil?

[MrQuick]

whats your level up to and how does the fluid smell?

[DreamSpeedPerf.]

level in perfect and smells a little burnt :(