Your description is not detailed enough for forum members to make a judgement - pictures would be helpful. Suggest you get a structural surveyor in for a look and take things from there.
I will try and do that as my bad cracks might be another mans nothing.
I also noticed the timber frame kit people at one of the houses today..not sure thats a good sign
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!