Heart Concern Question?

Im a teenager 14 years of age and i think something might be up with my heart. I always feel something i think its on the right side sometimes i feel normal other days my heart i guess bothers me its not pain rarely i get pain i think it fells clogged maybe? idk wat do i do do i get a blood test or blood work done? or chiropractor? idk please offer me some suggestions i just wasnt to get it checked out to see if its okay or if its my lungs or something i think the pain or the feeling is on the right side mostly