J.C.
I don't know if this will help but I have a 2 year old who had severe ear infections when he was a baby that delayed his speech. To help him communicate with us with less frustration I had my 8 year old and 5 year old help me teach him sign language. We all learned together and now he has was to tell us what he needs and what he wants. It really helped everyone feel less frustrated. There are some very good websites that have products that will help. signbabies.com is a good one.
good luck
J.