I don't think anyone is laughing.... your question is important, so I looked up some things you might want to read:

example:
http://integrativeworks.com/understa...-of-your-head/

There are many nerves, and blood vessels in the scalp and some of these nerves come up from your spine and radiate out around the outside of the skull/ head. If inflamed, these areas hurt and cause pain nearby.

So perhaps your therapist was looking for tender points in the scalp areas to see if any were acting up.

An adult human has a very hard skull, and deformation is not really common. Things in the skull crack or break, instead of deforming. If you had a bone disease where the bones soften and do not maintain their strength, then some deformation may be possible, but it is not likely. Bone scans can reveal these uncommon diseases. Just as uncommon is extra bone in the skull. Sometimes Paget's disease causes thicker bone there.

Many headaches originate in the neck and back of the head. If yours persists you should contact your doctor.