okay so I have the birth control nexplanon and I've been debating if I should go take it out because…

okay so I have the birth control nexplanon and I've been debating if I should go take it out because of the fact that I have noticed that I have gained weight and my hair has been falling out and ive been getting bad headaches and I feel like it has moved but if I do want to get it taken out how do I go about telling my doctor please help