I just got home for the night and on my way home, my car started acting weird.

I have a 1994 Accord automatic.

usually when i drive the car will get to about 2,200-2,500 rpms or so and then shift, and go back to ~1,500

but now instead of shifting when it gets to ~2,200 it goes at ~3,500 and it feels like i lose power.

i am assuming it is a problem with my transmission, its 3am and i cant see so im not able to check the transmission oil but last time i checked it was full and had no leaks.

does anybody know what it could be? or what it sounds like, so i can go from there