Is it normal i have asperger's syndrome but i feel my symptoms are diminishing.

I self diagnosed myself with aspergers syndrome when I was 15. Until I turned 13 I was in my prime at that time. In class I only needed to listen to the teacher and not write anything down. My memory capacity was the best it ever was. I was the smartest I ever was to sum it up. I gradually started to become a bit dumber as time went on. It eventually got to the point where I struggled to memorize notes. I couldn't remember some things that I should've easily recalled long and short term.

My coordination got worse and I began to struggle at doing simple bodily tasks like controlling mucus and saliva. I often choked sometimes on my own spit. My vocabulary and grammar has decreased as well. I did speculate that I could be dying of a disease that affects the brain but I doubt it.

The only benefit is that i can understand only a few social situations now. I thought this could be psychological that i’ve somehow dumbed myself down to fit in or I could be possibly “reverting” from AS.

Has this happened to anyone. I have no access to a doctor and I could really use someone else’s point of view on this.