Birth is always a nutritional stress. It may be helpful to add some vitamins to Lamia's food. I would give half a drop of a good bird liquid multiple vitamin on a worm or fish and not give more for a month. I've used a brand named Avitron without problems. By the way, bird vitamins are better for reptiles than human vitamins because birds and reptiles metabolize vitamin D3 better than the D2 variant. Human vitamins generally have D2.

Good luck.