That wasn't a WILD, because at no point did you describe dreaming. Capitilization, paragraph organization, and grammar: your posts need them.

My view of it is that you are impatient. Give it time. Wake-induced is a difficult technique to master. You could have (and should have) scratched the itch, if it was bothering you so much. It's a common misconception that you have to remain perfectly still to WILD.

Regarding your expectation of sleep paralysis--it doesn't have to feel like lead. Sleep paralysis can feel different every time.