^^ How about a comment you might not want to hear?

Sleep Paralysis is almost exclusively something that happens when you are waking up, and not when you are falling asleep, and even then it is quite rare, so you likely were not experiencing actual SP. It sounds to me like hypnagogic imagery, which can get fairly intense, or perhaps a dreamlet about your body being pushed, which implies that you were not only almost asleep, but you almost completed a successful WILD.

That said, it still makes sense to take Zaephr's advice and try to calmly use this sensation to help you enter your dream.