I guess time will tell - unfortunately beyond realising yesterday that topics that carry emotional pain are more likely to be problematic, I’m still struggling to identify what makes one topic a problem and another easy to talk about.
Botanical Latin is indeed interesting. I’m still learning how all the Cym species names should be pronounced (very few people get them right) and how the root words that make up the names relate to the plant they are describing (quite a few species are are named for people, so they include the name plus the appropriate suffix, but others are descriptive terms e.g. flava/flavum for yellow).
I can empathise with that feeling. I think it’s technically a form of panic attack; I have suspected nerve damage in one arm and cannot have blood drawn from the affected area (if I do, the pain is too much and I experience panic attack symptoms - nausea, sudden over-heating and sweating, light-headedness and vomiting). Apart from avoiding the triggers for it, I have also found that tensing one’s core and focusing on breathing helps (this reduces the drop in blood pressure and resulting drop in oxygen to the brain, which is what causes the light-headedness or fainting). I think body horror is a pretty typical trigger for this type of reaction too, so you’re definitely not alone there.