"Street" cats are scared. They have had to rely on their wits; everything is a potential threat. This is not abnormal and it will take some time to subside. Pinot (my girl) was SUPPOSEDLY not a "street" (or feral) cat when we adopted her from the shelter, but she has a lot of the skittish tendencies, too. Just try and be calm and soothing as much as possible; it'll be OK.

As far as the name - that'll NEVER happen. Cats respond to what they wish and it's part of their charm!