Hello there, I would need a post extraction Xray or OPG to comment on the actual status. Also if you could tell me, is there an issue in mouth opening? When there is a dry socket in wisdom tooth area, the mouth opening decreases and salty/sour taste comes up while opening and closing the mouth and yes pain is just one of the symptoms. Most of the times, it may take upto 15 days for the healing to happen.
Headache is not a very serious issue.
Next Steps
No antibiotic is needed after 5 days, yes you may continue with the pain killers.
Health Tips
Cold packs are necessary for healing to happen.