Thank you for the information,
From your description , it appears to be inflammation or infection of the papilla of the tongue.
This can occur from infection like bacterial, viral
or yeast like candida infection.
It can also come from exposure to irritation like hot food, spices, tobacco ,alcohol.
Allergy to tooth paste , mouth wash can cause it.
Deficiency of iron or B vitamins or some skin diseases are causative factors too.
Associated sore throat indicates more like an infection in your case.
You need to get an examination by doctor for an examination.
You can take analgesics
with anti inflamatory properties like motrin or aleve after food to get relief till you see doctor.
I hope this information will be helpful.
Please ask if you need any clarification.