Heidi Klum feared that she was going to suffocate in her worm costume. The 49-year-old model wore the extraordinary outfit at her annual Halloween party and revealed that she asked her husband Tom Kaulitz to make sure she was in a certain position at all times. Heidi told Entertainment Tonight: “I had to roll everywhere. I just said to my husband, ‘Please don’t leave me flat on my face and suffocate’, because I was worried that I was gonna, at some point, not have any gas left. “I was worried to be, like, stuck like this, and not be able to breathe and they forget about me. Crazy things go thr…