TOPIC: I am very full??

If we have had our dinner, we say "I am full"
But I have eaten too much, can I say "I am very full." Does it make sense?

You asked about the use of "full" when you've eaten too much.
Yes, if you have eaten too much, you can say "I am very full". But "very full" might suggest you still have room for more. To indicate there's definitely no room for anything more, you can say " I 'm too full."