I am sure everyone goes through periods of questions. If there is any substance to their faith, IMO. BUT remember, persistence. When you fall. Brush off, and get back up, no matter how many times you have to get back up. I don't know why you are questioning your belief in God and maybe more information would help someone to say the right words to help you find what you need, I don't think that I can since I don't know what is going on specifically, realistically, I dont think I could anyway, because it is an individual journey we have to walk. There is so much pain in this world, and so many things we can not ever understand, that is probbly the largest reason for lack of belief in God, but God loves you, how do I know, you are breathing arent you? I don't intend to sound silly by saying that, but our lives are literally in his hands, and we live literally because he alows it, even those who curse God to his face are allowed to live. That tells me something about his patience. My only advice to you would be pray, go somewhere in private, and talk outloud to God, tell him, EXACTLY how you feel, and why, it is no surprise to him, as you probbly know. I believe He will answer you in one way or another. Please don't give up, I will pray for you and I ask God right now to provide the comfort you desperately need.
God's blessings to you.
Brandy