Master Lin says to try and stay with the practice, trust in the universal energy, and relax.
You are feeling the energy move and it is a good thing. Staying with the SFQ practice will help it move and to move in a supportive manner. Trusting and relaxing help the energy move more easily.
These intense which we would sometimes label negatively are great opportunities for personal energetic development. Try and stay with them; the benefits are significant.
Don't try and interpret, or label the experience. Just have faith in the positive influence you are part of.
You are perfection.
Iam2 