Welcome to the Forum

These things your feeling are normal. If trying to WILD, you will always feel this things during the WILD. They are very helpful to WILDing as well. The reason they happen when your tired is, Sleep Paralysis comes into the later stages of falling asleep, and the early stages of waking up. What SP is, is the brain sends a chemical through your blood to stop you from acting out your dreams in reality. It ussually starts at the later stages of falling asleep that we normally don't remember. The reason your feeling it is because at the point it happens, your conscious enough to remember it. Its basically how the WILD works. You effectively try to stay conscious, awake and aware as you fall asleep.

Once again, its completely normal.

Be sure to browse the boards and ask questions if you need anything. If you have any other questions we'd be more then happy to help

Happy Dreaming!