Yeah, there's somethign deffinately wrong here

Click that ^ it's a picture of my financial rankings next to my Protectorate - Thrace. Now you can see a notable - VERY notable - increase after I become their Protectorate. Perhaps they are reaping all of my benefits of my trade as well as the trade from everyone who they have asked for trade rights. I'm at war with half of the map it seems (unprovoked besides Rome). I'm still confused.