I call it lazy and looking for an excuse. If you can't do something, you simply haven't tried sufficiently. If you have a head full of knowledge than you are as able as anybody with or without an LD. You sound like everyone who gets nervous over a test. maybe you should see someone for anxiety but other than that you sound fine.
I have a number of learning disabilities. I can't do math either. Because i don't know how, because right, i was a crappy student. Not cuz i can't stay on task, but because, well... cutting math class was more interesting than attending. I ace standardized tests. Often even the parts that i can't actually ace. I once took one and scored soooo high the school wanted to give me a special award. The sad part of it was i had not read a single one of the questions i just randomly filled them out. I don't even know what my own phone number is. But thas cuz we keep moving....
Maybe, people think you are pushy because hmm.... You seem opinionated like me..... When you think you know what is the best course to take sometimes perhaps laying it on thick??? I really don't know.... Maybe, you are just a little anti social??? Maybe you have PMS???
I never feel threatened by anything.... I refuse to feel threatened or to allow anyone to threaten me. I am an adult and i am as able as anyone else. Every day i prove that. I have peed all over the experts expertise numerous times and there is no reason to go looking for something wrong with yourself if there isn't.
I might be wrong on this last comment but, you might try going and having yourself tested if you are really that strong in your belief that you are abnormal. Because, if you actually aren't lazy and do have a real problem, then maybe there is a way to improve your life. But i don't think anyone here can diagnose you on this forum, but that is just a guess.... Though there may be an expert about somewhere, i should think they wouldn't want to diagnose based on a short post like that and would want the full borage of tests.