I'm a speech and language therapist, and what you're describing there sounds like what's called 'Developmental Dysfluency' (there's lots of information on the internet about it). Basically, what happens is a child goes through a 'spurt' of language development, and may have difficulty putting across his/ her thoughts or ideas, or telling a message. This is generally just a phase that children go through, but a few warning signs would be:
- The stutter or stammer persists for a long period of time without lessening
- Your child begins to get frustrated and may start to hit his/ her head, stamp his/ her feet, or twitch/ blink forcefully when they stammer
- Your child begins to become self conscious about speaking and becomes withdrawn
The best advice about Developmental Dysfluency is to ignore
it. Whatever you do, don't draw attention to it, or say 'Slow down and try it again' or something like 'no, it's not b-b-b-all, it's ball, try it again'.
As with anything else to do with speech and language development, if you are worried, speak to your PHN/ GP and ask them to make a referral to the Community Care or HSE Speech and Language Therapist.
Hope this is helpful!