I always feel appreciated. Though we talk about everything and anything that concerns us. We tell each other that we love each other like 4 times a day. We have been together for 15 years. We both more often feel like we are not doing enough for each other. But of course we both feel like the other does more then enough.
Does that answer your question? Why do you feel unappreciated? if you do.

No, it is normal for all of us to feel a little under appreciated every once in a while. The best thing you can do is talk to your partner and let him know how you are feeling and what he can do to help. Good Luck! +5