Hey, Jen. I'm sorry you're experiencing side effects. You're probably one of those people who is very sensitive to meds, which is why such a low dose worked for you in the first place--if you were a tough old bird like me, 2.5 mg probably wouldn't make any difference, LOL! I know the "zooms" are disturbing but trust me, it WILL go away. I didn't keep a diary last time I went off Lexapro so I can't remember exactly how long it took--I just remember that it happened less and less until I finally "noticed" that they were gone. I'm thinking maybe 3-4 weeks total? I'm just guessing.
I hope you continue to feel good after going of the Lex, Jen. Wishing the best for you!