My DS has just turned 3. He still only speaks in single words. He knows quite a lot of single words, so in theory should be able to put them together but doesn't. Knows his colours etc, but his speech is generally unclear to other people.
I just rang the speech dept NHS as he had previously been discharged despite being diagnosed with a speech delay and problems with certain sounds. I'm waiting on them calling back as they basically said they only want to see him if he's made no progress since his first and last assessment (3 months ago.) 
Am I deluded in thinking he's very behind for 3 ? Is it just that the NHS don't want to help me because they are say as he can understand he is fine. I had thought 3 years was the turning point for getting some
help. I've been asking for help since he was 18months old and we have only been sent a speech playgroup course.
Hearing all tested ok and no other health issues.