that all sounds familiar, when something doesn't add up to me I am driven to research and try and work it out for myself, I just can not let it go till I have an answer that makes sense to me.
and the same with exams, especially with ones that have maths or scientific formula, those stick in my brains but names especially of people I just do not remember well

Sorry to heal you are also dealing with an autoimmune disease I understand not wanting to let it control you and hence pushing it, but also take care of yourself

Ohh yes I totally agree no one can ever fully understand what someone else is goign through, but we can try to be supportive and understanding