I have been out of the army for about 1.5 months now. I was medically retired. I had 40% rating from the DOD and 90% from the VA. I found out that the DOD rating will never change and will get compensation from dod for life even if the va rating goes below the dod rating. I am currently getting paid from the VA cause of the higher rating. I have been suffering from Temporomandibular disorder for about three years now and I don’t really hope to improve. How many VA examinations will I have to go through? How does VA disabilities become permanent meaning no need to have examinations anymore? Is there a time period like if you don’t improve for 5 years, it becomes permanent? Any information would be appreciated.