Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it looks like dry tongue and numb and tingly feeling can be due to dryness in mouth while can be nerve related issue..
Dry mouth can be due to causes like
Severe dehydration, side effects of medications if you take any,
salivary gland dysfunction, serve damage supplying salivary glands, oral infections like
thrush, sjogren's syndrome..etc..
For dry mouth chew sugarfree chewing gums..
-Drink plenty of water.
-Avoid regular mouthwash and use specialized mouthwash that are formulated for dry mouth patients like
Biotene..
-You can also instil artificial saliva drops..
-Suck tart candies as it also stimulates saliva flow..
If does not improve consult a Neuro Physician and get evaluated..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.