Regarding birthdays he does know that I do not want a great fuss about birthdays a recognition and a thoughtful inexpensive gift is appreciated
I am puzzled, you have told him you didn't want a fuss, you didn't want anything other than an inexpensive gift, and that is what you received, chocolate, cakes with a candle and cards, I would have been thrilled that they had gone to so much trouble. I have one son who takes no part in buying me anything, entirely left to DiL to choose something and wrap it, and another one that ignores my birthday completely. Your DS did wish you happy birthday over speakerphone, I think he would be very surprised to think you thought he had neglected you. Sons generally leave the present organising to wives!
If you would like a more expensive present next time have a quiet word with your lovely, thoughtful daughter in law, making a joke of it, but you had told them not to! Or if you would like flowers, then again suggest they would be better for your waistline, and I am sure you would get a bunch.
You do a huge amount for them, and I am sure they really appreciate it. If you do feel a bit taken for granted (do they not say thanks when picking your GD?) then again a quiet word with DiL about what it is you would like them to do?
I am sorry if I have read this wrong?