Falling from 2-10 blocks after being hit by shulkers causes death from a high place with full hearts and armor.

When I am hit by shulkers and I levitate - once I fall to the ground I die. I have full hearts and armor on. This has happened when I am 2 blocks high or 10 blocks high. Sometimes it happens after a suffocation glitch. I believe it happens when I am wearing elytra only but I haven't tried without.