How Do I Express My Feelings To My Husband?

I know it doesn't seem easy to do this, but you know really the best way is to sit down with him and talk about it. If you can do that, it should help if he really hears you about your concerns. I also use to write letters to my husband telling him how much I loved him. Sometimes, it would work, and others he was indifferent, but that was when I would talk to him about it.
Sometimes, they just need a reminder that they are loved, as do you. Going on without him knowing how you feel, isn't going to help the relationship, so please make time to talk, or write him that letter, and see where things go from there. Hope this helps. Best of luck to you.