Adhd !!!

I feel like I might have ADHD but my parents are reluctant to get me checked I have all the symptoms of adhd like distraction and hyperactivity or hyper focus and its messing with my school life !! I have difficulty in completing my school wor and projects . My freshman and sophomore year were horrible because of this. I had to work really hard to get good grades and I feel that if my parents have get me checked I wouldn't have to work this hard to remain at the top of my class . I am a straight A student and my friends think it's easy for me . But they don't know about the struggles I have to go through to maintain my grades . If only I had medical help it would have been helpful!! I know that undigonoesd ADHD can mess with personal life, work and relationships and I am scared !!!