Arielle hey our teacher always said that vcaa likes to trick us and put sicknesses so students will assume it's exhaustion however it is very rarely exhaustion stage in a Q, try and see how extreme the wording is - heart condition in comparison to coughs and colds. i do remember in resistance stage the immune system is weakened due to prolonged high levels of cortisol and this increases suceptibility to more minor diseases however heart diseases stems from the long-term strain and effects of cortisol which have been placed on the body
i agree with rey64 for the most part, you're on the right track just work on identifying the symptoms and grouping them, maybe making a table or flashcards could help you so when you see a practice Q you can immediately identify
hope that helps!