The problem is that my viewpoint settings have become wonky as when I zoom I will end up in random places and when rotating it will start dramatically change what I am seeing one thing then it disappears and reappears somewhere else. Blender version is 2.79
Try selecting one thing, then press the Number Pad Delete/. key. That'll reset the focus to what you had selected (and zoom you in on it). Then your navigation in the viewport should be more controllable again.