Right Analog Stick Moves Byitself when holding L2

I Have had an issue different from the most. My Ps4 controller is only a couple months old.Here recently i have had a problem with my Right Analog Stick which moves to the left only when holding L2 down. Any answers to this problem its pretty much a brand new controller i dont see why it would start doing this so early. I have tried so far resetting it and disassembling it and cleaning the analog sticks but nothing seems to work.