Jannie,
Go with your instincts. Be aware that some people with bipolar get stuck in "mixed states" where they are between manic and depressed, but have the worst parts of both.
But no matter what, go with your instincts. You are with this child more than anyone else (other than immed family) AND you know all his history. PLUS nature gave you instincts to ensure the survival of your child, and thus the species.
Personally, if you think there is a mood disorder, I would want a medwash (get rid of vyvanse and lexapro) and THEN to try mood stabilizer medication. From the research I see, it is very hard to tell if a mood stabilizer is just another pill or is working unless it is given with-o antidepressants or stimulants.
While you have probably read The Bipolar Child, it is always an interesting re-read, at least the parts dealing with certain problems, like medications. There IS a protocol for treating mood disorders that is approved by the Board who certifies psychiatrists. If anything, you might want to find it (it was on here a while ago) and ask the doctor if you could follow THAT for a bit.
Hugs,
Susie
