What to do

Me and my husband have been together 14years and been married for 6 years .. we are childhood sweethearts I met him at 15 and I’m now 29 … i have been with other guys and done stuff with them but I haven’t had sex with any other guy but him we have two kids together and I’m just to a point where I feel like I didn’t live my life how I wanted although I have been on crazy nights out with my girls I have never been on young crazy drinking holiday … it’s only now I’m feeling bored in my relationship i feel like I want to date other men ect I don’t even know what to do … is it normal to feel like this after such a long time .. just feel really unhappy at the moment thinking about what I want life wise and I can’t have it