Just for clarity here on the infrasound stuff, I think people use the word and have in the past wrongly and in a similar way to how they use others words out of context and in a way that they shouldn't.
67mopar is right, Primates don't use Infrasound, but they do use Ultrasound and Ultrasound, just like Infrasound, does have similar effects to adult humans such as dizziness, nausea and can cause death.
I'm saying this as 67mopar ignored my original post about that and continued to pull people who are using the word infrasound which IMO is being used when it shouldn't be.
The truth is clearly, many people don't understand infrasound, myself included, and I believe are looking for a word to describe certain experiences and have adopted "infrasound" when they shouldn't have done.
Ultrasound looks to be a much more possible answer to what these experiences could be down to, because ultrasound has and continues to get documented within Primates and it causes the exact same symptoms as infrasound does.