Hi, my son presented very early with verbal and oral Dyspraxia very early on... Over the years he's been in ST since 14 months etc etc... Anyway, long story short he's now 5 with a Aspergers Dx, a speech phonological disorder and stutter. He still has problems doing things such as licking an icecream and tires very quickly when eating (low muscle tone and fatigue). His speech however is intelligible these days by most people but only when IN CONTEXT... The minute he starts talking about his favourite toys or something that happened a while ago, alot of people have trouble understanding him.
Anyway, I've been where you are and it can be a lonely ride. Here if you wanna pm me :-)