Period of Uncertainty

I was sick for a couple of weeks until a few days ago. I wasn't eating much and what I was eating wasn't getting processed so well. It was in that time that I felt I was losing my breastmilk. It was also in that time that I think my menstrual cycle might have started up again. Now I'm feeling better and I'm milkier than ever. Which is good because I'm not ready to wean.
I can tell that she's becoming better fed-- or something-- because she's gone back to spitting up after she nurses. Not much-- and not every time-- but it's something she never quite grew out of. I should ask the doctor about it, I suppose.