Mmmmm physical changes to expect.... Believe it or not, judging by an informal poll of other TGs in my group, taste. You start craving all things vinegar.
As for the other totally expected stuff, I never been on an AA alone without E. For me the first changes was how my very oily skin started to dry up and stopping smelling like some guy. By about month 3 was when the hormone effects really started becomming noticeable between tender nips and floppy morning wakeups, and more.