Hello..wisdom teeth as such are not use for chewing food instead if they are not properly aligned they cause food lodgemnt,decay to adjacent tooth etc..so if its causing pain better to go for removal to prevent recurrence of pain.In your opg ,lower left back wisdom teeth can also cause decay of adjacent tooth,go for removal if it is painful.
I would suggest you to get it removed coz once it has started paining it may subside for sometime but it will surely pain you again so it id better to get it removed when There are no other complications instead of waiting for it to pain again
I would take a second opinion to be sure that it is the upper wisdom teeth that are paining. One of your lower wisdom tooth is horizontally stuck in your jaw - the medical term for it is impacted - which definitely shall be needed to be removed sooner or later. If the pain is currently in the upper teeth, maybe you can get all four removed.
Wisdom tooth removal, while temporarily painful and quite expensive, wouldn't have any long term problems for your chewing etc, and keeping the ones which are occasionally paining will constantly irritate your gums.
Please get a second opinion, and then get them removed.
ACTUALLY YOU HAVE NOT MENTIONED THAT YOU HAVE PAIN ON RIGHT SIDE OR LEFT SIDE , LEFT SIDE LOWER WISDOM TOOTH IS HORIZONTALLY IMPACTED , AND HAS TO BE REMOVED , PAINING OR NOT PAINING , ELSE WILL EFFECT THE ADJACENT TOOTH BY CAUSING CARIES DUE TO FOOD IMPACTION , LEFT SIDE UPPER WISDOM TOOTH IS CAUSING TRAUMA TO THE CHEEK SO SHOULD BE REMOVED AS CONSTANT CHEEK BITING IS NOT HEALTHY . ON RIGHT SIDE IF YOU HAVE CHEEK BITING OR LOWER TOOTH IS PARTIALLY ERUPTED THEN SAME TREATMENT .
AND YOUR QUESTION THAT IF IT IS NOT PAINING NOW , SHOULD U WAIT ,....ANSWER IS ,PAIN IS RELIEVED BECAUSE OF MEDICATION AND REASON IS NOT REMOVED ...IT CAN REOCCUR ANYTIME ....SO WHY BEAR PAIN AGAIN