G'day Jalef!

An interesting sensation.

I think this would be related to Kundalini awakening.

Given your description of the gentle nature of this energy, I do not think you have anything to worry about. This sounds like a good thing.

Keep doing this and see where it leads. And let me know of any changes please.

A whole body bounce, like you are bouncing a large ball from feet to head, up and down, may help even this sensation out.

Take care, Robert