Being a Registered Nurse (almost), I can say I've definitely witnessed seizures where patients haven't lost control of their bladders.
In response to the original post, being new to tarot, I can provide a little bit of perspective on the fear associated with it. I definitely think fear has been holding me back in terms of engaging with spirituality, intuition and divination, including tarot.
I'm not religious, but I do believe in spirits and divinity, and the power of intuition..
In that way, I have been scared to engage, simply in case I receive or feel negativity. Even the prospect of receiving realistic and relevant energies and readings scares me to some extent, because to me, it's something I would feel was "real" and hard to ignore..it would be hard for me to deny any messages I felt I was strongly receiving..I feel like by engaging, you are allowing more energy and intuition to come towards you..both positive and negative... and the negative part has made me somewhat hesitant in the past. To the point where I wasn't really willing to engage in case something "bad" happened...
I know now though, that there are ways to promote positivity (somewhat exclusively), and that makes me feel a whole lot better about everything...
Not sure if that helped or was answering your original question but that's been my experience! I'd be interested to know how others perceive and promote positivity with Tarot, and spirituality and intuition in general