I am feeling asexual towards my husband, is this normal?

After my second baby, I am just feeling not attracted to my husband. I do not want to be intimate sexually with him and anytime he slightly touches my engorged breasts I cringe. I hate feeling like this because I know I am hurting his feelings and rejecting him when I snap or pull away from him and it often leads to a tension filled evening or heated discussion. I love it when we cuddle, kiss or hug, but I just hate it when he tries to put a move on me. I explained to him that my breasts are off limits and sensitive because I am nursing, but in reality I also just don't want to have sex. I force my self to be intimate with him, although I am cringing inside and have my eyes squeezed shut in the dark, often it feels like I am being sexually assaulted because I really don't want it. I hate feeling like this because I want to be intimate with my husband and I want to enjoy it. I am 5 months post-partum and breastfeeding still, is this normal? Could it be hormonal although I did not feel this way with after my first child was born. Do I need to go to counseling for this? I do not want to jeopardize my marriage because I do love him very much.