Feeling unappreciated

Me and my man have been together for awhile now, we are kinda long distance I live in LA he lives in Vegas.In the beginning he would always set aside time everyday to call and text me, and send me sweet things, but now when I'm not physically with him he doesn't make that much of an effort to make me feel special. He doesn't call or text me on a daily basis and his distance is really hurting me, emotionally I'm starting feel almost totally disconnected from him and it's making me really unhappy. I don't know how to tell him I need more of his affection/attention without sounding like a brat. I really just miss how we used to be and how special he used to make me feel even when I wasn't with him. Am I overreacting? How do I tell him his being distant is really turning me off ? Thanks for any advice in advance