Hmm...thicker than average legs combined with a proportionally narrower than average waist. Sounds like you fit women's jeans for some strange reason.
Or go with Buff's suggestion and get ones that fit the legs and get them tailored to fit your waist. Tailoring simple things like that isn't all that expensive. Seamstresses are plentiful around here, I assume they are available for your country as well. When I picked up the pants for my suit, the seamstress was finishing up with a Russian guy who had gotten his jeans fixed.