Please tell me if i should be worried i got dental x-rays just a week apart?

Not necessarily : I wonder why you had 2 series of dental radiography back to back , but i highly doubt they were both full mouth radiographs. In that case you should not worry. The dosages of x-ray beams in dental machines are not dangerously high.

Very low dose: X-rays are essential in diagnosing cavities and other dental problems, as dentists we are aware of radiation risks. We prescribe x-rays carefully to minimize the exposure and maximize the information from them. The dosage from dental x-rays is very low, about the same as a cross country flight, much lower than many common medical x-rays. The lead apron protects you.

No worry: When all standard safety precautions are taken, dental X-rays are very safe with minimal radiation and maximum resolution. Today's X-ray equipment is able to eliminate unnecessary radiation. The test is necessary for a proper diagnosis as needed.