I have read that some of the folks getting sick were movie theater workers who listened to it (but not watched it) over and over again. Some people theorized that the angry bee noises may have made their stress levels go up enough over time to affect them. It’s a sound that would naturally cause your adrenaline level to rise because it’s a warning of danger, and it since it’s intermittent it would be hard to tune it out, so that might explain it.
I seriously doubt anyone had heart attacks over it though.
Aveguy watched it for the first time last week and thought it was a technically well made movie, and pretty amusing. I had told him to watch for the subliminals- the faces, the bees, the non-reflective mirror, etc. He managed a freeze of the mom with ex-rays behind her, and one of the demonic faces, and they seem to be making eye contact in a wierd way. It was hilarious, the demon face resembled Uncle Fester on a really bad day. He did say the plot seemed kind of thin, as in “She said her bed was shaking and her mom takes her to a psychiatrist?”