An ND maybe able to walk you through hormone testing, Joyce, as well as thyroid, adrenal, and other common glandular depletions that can cause symptoms you describe. No doubt, though, a good nourishing diet can be a good starting place. Pregnancy and breastfeeding, plus all the other unavoidable tasks that come with mothering can quickly deplete reserves. Often a good multivitamin, and a multimineral supplement or just a B complex along with a magnesium supplement will turn things around. You could do these on your own immediately while finding a practitioner to walk through the particulars of your health history. For myself I found a big increase in energy when I started taking B12 in sublingual methylcobalamin tablets. They cost about $4 for a two month supply, so it's a safe and inexpensive try at minimum. Hang in there. It does pass.