GHB (etc) may help.
Wine is not such a good idea, as it will further dehydrate you.
Keep your fluids up - and even if you don't feel like it -eat something!
This is really important with stimulants - many of the negative effects come from the sleep deprivation/lack of nutrition/dehydration.
it seems like keeping this a secret from your husband is giving you a lot of anxiety - remember, your perceptions of these things can be blown all of proportion by stimulant paranoia.
Rather than let it eat at you all night, maybe you should think about coming clean?
Your worst fears may be a figment of the notoriously paranoid ethylphenidate comedown...
I won't get in to the whole "making myself thin for him" thing ...
It sounds like he's already noticed something's up - maybe you should tell him you fucked up a little and need to talk?