Hello there ,
Thanks for writing your query,
Pain , tingling sensation
and tight feeling in the arms and legs is due to the raised blood pressure.
As you have mentioned you do not have high BP , SUDDEN RAISE IN THE BLOOD PRESSURE is may be due to apprehension and anxiety
you had about the dental surgery
140/78 is slight raised blood pressure , do not worry.
raised blood pressure is not associated with dental surgery but it is due to stress , anxiety and general weakess.
i would suggest you to start with a antibiotic and analgesic
course consulting your dentist
, which helps in subsiding the swelling and pain post extraction.
avoid stress , take rest and relax yourself , drink lot of water and keep yourself hrdrated.
follow all the post extraction instructions and rinse the mouth with lukewarm saline or antiseptic mouth rinse
i hope this helps ,