Hello and thank you for the question Dolores.
Answers given are for informational purposes only and are not meant to replace an exam by an in-person.
I am Dr. Sohaib, a practicing Internal Medicine Specialist and i will do my best to help you today.
This appears most likely to be related to a nerve compression due to prolonged sitting in the car and the posture.
No, this is not some thing like a blood clot in the leg for which you need to go to ER right now.
However, if the symptoms do not improve, persist, or get worse, then off course you need to see your doctor for a comprehensive clinical examination to get further management plan chalked out such as this may require MRI of the spine, or Nerve conduction studies to get diagnosed with certainty which will direct further specific treatment.
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