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I am sorry your boy is having trouble.Licking roof of mouth can indicate pain or discomfort.
He may have a stuck item,sore, bad tooth or be nauseated.
Look at the area with a magnifying glass to see if there is an issue.
If he is nauseated add one quarter of a ten mg pepcid A/C (famotidine) to a tablespoon of baby food chicken with no onion or garlic.
Feed him only baby food or smooth pate canned cat food until he feels better.Warm the food to bring out the aroma Dry is hard and irritating to his mouth.
Please let me know how he is doing.
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