It sounds like you were taking lexapro for about 2 months before beginning abilify. Thus, if the swelling & increased sleeping started after beginning the abilify, it's most likely related to that. I am betting you see a family doctor who is giving you the abilify to help depression b/c lexapro didn't work enough.
Although abilify is FDA approved for this reason, I disagree with its using it for this reason unless all other options have been exhausted (for several reasons, but mainly possible long term side effects of abilify...it's a "heavy duty" medication).
Anyway, if it's only been 3 weeks you can probably just stop it; abilify is not usually known to cause any withdrawal symptoms. If you want to play it really safe, you can cut the tab in half to 5mg for 3-7days and then stop it. Good luck.
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