welcome to just answer,
I dont see an answer
since when you have these symptoms?
Is there any associated tingling numbess?
do you feel any tingling numbness?
Have you tried any medication?
How often you get these spasm in a day?
Is there any pain? Can you grade pain on scaleof 10?
Thanks for all the information.
These symptoms i.e tightening and pain you are having are due to muscle spasms.
Muscle spasm occur when a muscle is overused and tired.
If muscle is overstretched or if it has been held in the same position for a prolonged period of timesuch symtoms occur.
Othere cause can degenrative spine causing pinching of nerve,
anti-inflammatories like ibuprofen and muscle relaxants can be used to relief.
You avoid standing in same position for longer duration.
Take proper rest.
If symptoms persist you need to get your self examined by your doctor.
He might order x-ray of spine.
please do accept the answer.