My Response:

These experiences are quite common in meditators. 

As awareness becomes more refined and abstract, it is as if the spatial boundaries and orientation of the body can feel distended or distorted. 

So we might feel very tall or massive or tilted or turned. 

Sometimes people report that their body feels incredibly dense and foreign to them. 

These are all normal meditation sensations as a consequence of the mind experiencing subtler realms of thought.

Love,

Deepak