Hi..
Welcome to HEALTHCARE MAGIC.
I have gone through your query and can understand your concerns..
As per your complain it seems that white coating over tongue seems to be due to oral yeast infection known as 
oral thrush..
White/yellow spots on upper inner lip can be either small ulcers or can also be raised sebaceous glands known as Fordyce's spots and it is not any pathology..
Headache and earache can be due to 
ear infection and can be commonly bacterial in nature..
I would suggest you to consult an Oral Physician and get evaluated and a thorough clinical evaluation can help in diagnosis and treatment can be planned accordingly..
In case of thrush antifungal medications like 
Nystatin mouthwash and 
clotrimazole lozenges can be advised for 15 days.
You should also consult an ENT expert and get ear checked and in case of infection antibiotic ear drops can help..
For headache you can also take 
Ibuprofen..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora..