Do I have long face syndrome? What procedures are available to correct my facial disharmony? (Photo)

Classically, we divide the face into thirds. We all have different facial shapes. Some of us have round faces, some have triangular ones, and still others are more rectangular. This is what makes us all unique and special. While you have a longer rather than a round face, your proportions seem to fall into a fairly normal pattern. That is, your forehead, mid face, and lower face are all close to what is considered acceptable. You may consider a reduction genioplasty to make the chin less prominent, but this is a personal preference as others my find that your strong chin as a fairly masculine feature. It is all in the eye of the beholder

It seems like you have a mild form of midface hypoplasia and an elongated chin.  Your occlusion appears normal.  The pictures appear a little distorted, but it does not seem like you have a long face syndrome.  However, there are treatment options, such as genioplasty and adding volume to the cheeks, that would give you a better overall balance.  I would advise you to see a board certified plastic surgeon with fellowship training in Craniofacial Surgery.  Good luck!