I've been losing weight while breastfeeding and it's a problem for me and I'm starting to become nervous for my health. Before i had my daughter, i weighed about 104 (I'm 5"2). I went up to 128 before i had her in march. I weighed myself in October and weighed 101. I just weighed myself right now and i weigh 99 pounds. I'm really worried about what could be wrong. Has anyone else gone through this? What can i do to gain weight again?

Add: I exclusively breastfeed