I didn't have time to read any of the replies, so I hope I'm not saying anything that was already talked about..... (sorry if so).....
I have wondered what the solution would be if I eventually have those feelings, and I've wondered why some women seem to get "burnt out" more quickly than others. I think a lot of it lies in your hubby (talking generally, not yours specifically) and how often he does things that give you a break (whatever that might be).
So basically, if it isn't depression, I think what it comes down to is....support from the spouse. I do think that support isn't always easily gained (depending on your husband's disposition, habits, upbringing, etc). So what I'm going to say below is basically how things work for us. I consider myself lucky, that my spouse adapted pretty easily to taking care of me when I needed it, emotionally. If it doesn't come easy, it may take some conversations to get there (more on that below).
Anyways, I think it depends on the woman, what helps her feel "free" or better. First of all, my husband has figured out how to tell when I need help.....by seeing if I look/act exhausted and frustrated, or by just listening for me to tell him, "honey, I need ______." I don't use the word "need" lightly, so when I use it, he knows I mean it. About 20% of the time, he'll drop the ball and not help out when I use that word, but then I get upset, and he realizes quickly that he screwed up big time. (yes, it sounds like I have him whipped, but it's moreso that we each try to step up to the plate and help the other person when we know they really need it. I do the same for him, so that is the key to this working).
In terms of what makes me happy and helps me (just as a point of reference): I hate to drive around here, though I do it sometimes. So for me, him going out and getting me whatever fruit smoothie I want from Whole Foods, then whatever chocolate bar I want, then just letting me veg in front of the TV and doing the dishes, is enough to "reset" me. Sometimes it takes a few days though, of him knowing I'm going through a rough time, and him just trying to get more done around the house for me. I don't ever need anything fancy, but just him driving somewhere to grab me whatever treat I want, often helps. But he will normally do this when I need it, be it once a month, or three times a month. I think that knowing I can lean on him, and just get a "free pass" for an hour, really helps.
It means a lot to me to know that if I ever get sick of being a housewife, he is there to prop me up until I'm enjoying myself again. (If you are depressed though, obviously it would take more than that.....you can't really lean on someone else to get through depression; it just doesn't work like that, and it will often make things worse because you then exhaust the people closest to you, in addition to your being "spent"). So back to him being there for me......I just can't imagine this "job" of being a housewife/mother without having your partner's support. I think that is basically the key.
Now, you catch more flies with honey than .....something bitter???? (forget the saying). Anyways, if you think this could just be a lack of support and not depression (but if it is depression, don't bother taking this route...) I would just tell your partner NICELY that you have been feeling really worn down by ......-either not focusing much on yourself/having downtime......or, -by not feeling like you have much support from him (and give practical examples of what he could be doing, like washing dishes every other night, cleaning the coffeemaker, listening more, voicing appreciation more, etc....since "support" is very vague and most people won't know what you want them to do). Basically, you want to come from a place of love and "I want to make this work for us", because adults don't like feeling like their spouse is ordering them around. So just saying, "please start doing X" is often not interpreted well. But basically, I do think it would be good for you to suggest ways that your spouse could be lifting you up. Figure out what you need, then (very respectfully) suggest/ask for it. I find that most rational, kind adults will try to help someone out when they realize it will make life in the home happier and smoother. And this job is too hard to do, without feeling like we are respected and our partners and kids will do things to appreciate Mom! Maybe your spouse could try getting your kids involved too, in special things to do for mom, to make her life/job/sanity better.
Sidenote: Be sure also that he feels HIS needs are being met (you may have to ask him this question). Because it can be pointless to ask someone to meet your needs, if you don't make sure theirs are being met. So if your requests for help aren't working, you may want to ask, "Do you feel I'm meeting your needs? Is there anything I can/should be doing differently?" I know this seems very ironic considering the original post here, but maybe he is acting out because he has "a bone to pick" about something, or is bitter about something, and that's why he isn't puling through and supporting you. So it's good to just be sure that isn't the case, if these "please help me" convos aren't getting you anywhere.
Sometimes the solution is just to show genuine care and interest for your spouse, and then all of a sudden, they start doing the same for you (then your job becomes easier). Sometimes I've noticed that if I do a small favor for my hubby that is unexepected, he'll often "return the favor" five-fold. Then before I know it, my life starts looking easier, because of a seed I planted. I know it sounds terribly ironic, but it is honestly what has worked for me. I don't have kids though, so I'm not sure how it factors in with children.
GOOD LUCK!!!! Blessings.......