I am confused on whether or not I have a learning disability or just a memory issue?

OK.....I have CP on the right side of my body. So, I do write sloppy. I mean, it takes me too much time to write neat so I just write so it is legible for me. Whatever. So it's not that that would be considered a "learning disability" like dyslexia. And, I don't have problems with understanding. I have short-term memory problems. I only retain about half of what I read the 1st time. But, I have the memory capacity of anyone else. I mean, I can remember everything I read or hear if I read or hear it enough. I have went to college and studied business, and, at my best, I was a 97% student. In fact, my 2nd year I had to "leave" because of bi-polar disorder. When I was leaving, I was avg 65% in those cles. Barely ping. When I went back to school after a year or so and took the same cles, I avg a 97. SO, I increased my avg over 30%. And, I don't think my 97 was because of a lake of intellegience. What I mean is, I could have earned a 99 if I didn't make so many mistakes. But, I have no processing problems at all. In fact, I can read about 1,000 wpm. It's not like I am brilliant nor anything like that, but I never have a problem with understanding things in school or in life at all. Is understanding intellegience or are they different entities? I just wondered if having memory problems was really a learning disability? Technically it sounds absurd to call what I have a memory problem since I can remember everything in the end, but I guess the CP just makes it so I have to read it many times to remember. But, again, I have to go over it many times. It's only to remember. I understand everything the 1st time I hear or see it.