I developped a technique for this which seems to be highly efficient for many people. You can read it here.
Also, the non-feeling of limbs is normal. When you WILD, you slowly withdraw your “outside” awareness. Not feeling your limbs can be part of this. An extreme case could be that you dont feel any part of your body anymore. So dont worry about it, it is actually a sign that you have some talent for WILD-ing!