xbox one controller doesnt like holding buttons

ok i havent had my xbox one controller(the one with the same name but with bluetooth)

for less then half a year now

NOBODY touches this controller except me so i know if someone else or i broke it

but recently my controllers A button doesnt work right after not being used after a while

if you hold the A down for a few seconds it will "lapse" and release for a fraction of a second

and that can get extremely annoying for quite a few games

anything im missing?

:)