Sorry to ask this again, Its just getting to the point that I have so many coins that if anything happened I would have just wasted all the time I put into this... Does anyone this the following message will affect the coins that I have mined and that are in my wallet - "Warning: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade"?>>>
I have not seen this either. Is your wallet this version? v0.8.6.5
Have you tried to stop mining, close the wallet and after a minute or two, restart the wallet to see if the error goes away?
NOTE: You should definitely backup your wallet before trying anything.