Calling a structural engineer isn't going to get you any answers. A structural engineer is not going to arbitrarily give you a thumbs up or tumbs down based on you telling them a few basic parameters of the home. They will want to know the design parameters of the structure, date of structure, and a whole bunch of other questions. If one has the answer to those questions, then one could simply read the articles here, and via simple google searches and find the answers they are looking for.
My advice:
When in doubt -- DON'T