In Google webmaster tools I notice that last week 35/35 pages were indexed, a few days ago only 34/35 were indexed, and today only 33/35 pages were indexed. Should I be worried?
Nah, the number fluctuates (hard to say that word without sounding like a dick) a little.
Typically if this is a site you're trying to boost up there's going to be more pages added/updated/being linked to. The pages that could have been deindexed were for example attachment image pages that WP generates.
You should be very very worried, delete that google account and never use any type of google account again. Do not give the gorg access to any of your website marketing/ip/personal info and making money becomes much easier.