Maybe you should ask a medical professional about this.

If I understand you correctly, that's normal. But this really isn't the place to ask. Maybe try posting a photo reddit if you don't want to see a doc?

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The temple itself is an indent, but above that indent is not likely to be another indent. As the others mentioned go see a doctor and have them touch your head instead of expensive scans. If you are feeling it, they should too. A nurse should also be able to feel it and tell you if something is concerning and if you should schedual a visit with a doctor.

Ask a doctor, nobody can make a meaningful diagnosis from such a brief description.