hello,
i've had the same experience with bacopa + ashwaghada in the past, so i stopped it.
without going to much into detail, my personal guessing is that, they slow down ,your and my brain-system.
both have pro gaba effects.
bacopa is upregulating gabareceptors, and ashwaghada is agonizing gaba receptors. gaba is a "brake" neurotransmitter.
also bacopa has pro serotorgenic activity. which also is kind of a brake.
so the system goes into full stop if you don'T press enough on the gas pedal.
the gas pedal is the dopamin system and the acetylcholine system.
so to solve the issue i personaly simply supported my dopamin and cholin system with, tyrosin, dlpa, cdp choline, weight lifting and aerobic exersice like jogging.
i also take deprenyl cause i had a serious problem with my dopamin.
i started taking bacopa + ashwaghada a few days ago again, and everything seems realy good till now.
based on the logic i stated you could either up your dopamin and choline system or choose just one of the two. and see what fits you best.
of corse there is much more going on with this two components but i guess thats the juice of the situation.
i'm a newbie and i answered just based on experience, i don't know if its right or wrong what i stated. 
lets see what other members will post
edit: i just remembered another part of the puzzle.
ashwaghada is upregulating thyroid (t4 if im not mistaken) production.
bacosides A also upregulate thyroid production if needed, and bacosides B downregulate thyroid production if needed.
it is stated in various websites that ashwaghada regulates thyroid hormones in both hypothyroidism and hyperthyroidism.
so probably there is complication in the thyroid hormones if this two herbs are combined.
Edited by chris7900, 07 June 2014 - 06:28 PM.