J.S.
Hi, J.!
I was not able to breastfeed either of my boys (now 16 and 2), but I can tell you that they had spurts of non-stop feeding, too! If you are concerned that your daughter is not getting enough to eat, here's a trick:
Get on your bath scales just before you start feeding her. Then, after she has finished nursing for that round, get back on your scales again. (If you need to use the restroom, do it before you get on the scales the first time, or you will skew your results.) A digital scale works best for this. My DH bought me a set of scales this past year for about $40, and it reads to the 10th of a pound. The difference in your weight before and after you nurse is going to be how much your daughter got during that feeding.
You can also check your daughter's progress this way. As long as you are not changing brands of diapers, you can hold her with *just* her diaper on. Clothes are inconsistent in weight, and therefore make the weighing unreliable, but diapers have a "set" weight, like a can of green beans does. Get on the scale while you are holding your daughter, and determine your combined weight. Then, after handing her to someone else, or putting her in her crib or other safe place, get back on the scale, and get your weight. Subtract your weight from the combined weight, and you will know that your daughter is indeed getting enough milk. If you notice that you are getting smaller discrepancies between the combined weight with your daughter and your weight, then you should contact her pedi about supplementing your milk with formula. But it sounds to me like that is not a problem right now.
I'm jealous that you are able to breastfeed, and I encourage you to keep it up as long as possible! I would also encourage you to keep in contact with your lactating consultant if you have one. If not, your OB/Gyn, pedi, or the hospital where you delivered should be able to help you find one.
(Oh, and for the times you think she's not eating enough, as long as it doesn't go on for a week or more at a time, she's doing fine.)
Feel free to email me or call me if you have any questions!
~J.~ ____@____.com ###-###-####