What could cause the uncontrollable urge to laugh ever since i was a young child i often would have uncontrollable urge to laugh before falling completely asleep. the old i have gotten this still happens farely frequently but for the best few year i have

There : There are several things that could do this. Severe stress could be manifest as uncontrollable urge to laugh. There are also some conditions such as types of seizures or tic conditions that could cause this. The most reasonable thing may be to consult your doctor or even a neurologist and discuss this, especially as it is worsening. There may be medications that can help you.