Why do I hate abstract art?
The same reason I dont like photo realism. We all enjoy different things.
I got 98% in a test for abstract reasoning, what does that mean? What can I use it for?
Abstract reasoning ability is the ability to draw conclusions from data (sometimes incomplete), and is one of the hallmarks (though not the only one) of higher intelligence. Thus the ability to reason abstractedly is useful in creative projects such as design, art, music. It is also useful in technical jobs such as engineering, physics, or chemistry. That of course is not the sole requirement of intellect, nor does it show that you would have a desire to pursue those fields.
How can I be a doctor if I hate chemistry?
If you love helping people and you love anatomy and phys, you can be a doctor. You sound intelligent and it's clear you want to be a doctor for the right reasons. It's going to be more difficult for you to work through all the chemistry because you won't have any interest, but that doesn't mean it's impossible. If I were you, I would grin and bear it and try to connect it to biology as much as possible. Find a really good study buddy or group when you take it. I despise chemistry as well. I love biology and A&P because they quickly make sense to me, but chemistry doesn't. I love science... from the cellular level up. I can SEE cells under the microscope, and I can SEE what happens to the body when something goes wrong with the cells. I just feel like chem is such an abstract concept and you can't really see it. You may feel the same way. It may actually take some extra research to get you through chem. Look up all those solutions and chemicals and compounds you're researching and figure out what effects they have on the body. Good luck! You'll be fine. I can tell that you have the passion, intelligence and determination to be a doctor.