One of my big health checks for me personally?
Fear of roaches, regardless of size and heights. Childhood trauma can be the source of these huge fears.
I was used to the "cute" small german roaches until I moved to Florida. They grow them like dinosaurs there! Granted not as thick shelled as a Madagascar but those suckers fly. I was a young girl when one flew in my hair and to no avail of every attempt of my mother to get the crawling thing out of my then long hair to the butt, it could be be convinced to leave the premises. My mother was left no choice but to smack it. I heard the exoskeleton crack and to this 40+ years later, have not recovered from those things. Alive or dead.
My brother thought it great fun to pick me up at the age of 4, hit my head on the ceiling, keep me suspended, and then treat like I was falling to hit the floor. I was slowly trying to overcome this fear when a lifeguard took upon himself to throw me from the high dive. I have never really been able to overcome it since then even when doing any ferris wheels. I usually close my eyes when we climb and descend the top.
On medical cause, do not tickle me. I will literally stop breathing. I have no idea why, but it happens. These are clear discussions I have had with all types of relationship dynamics when they become closer friends or more.