appetite gone after having baby


so I lost all the weight that I gained during pregnancy immediately and then Within about a month of giving birth I also lost the extra 10 lb that I had put on prior to help get pregnant. but I just keep dropping. I've got like no appetite. I didn't even have an appetite after giving birth. they kept trying to shove food at me but all I wanted was water. I'm not breastfeeding anymore (when I was, I just forced myself to eat) so fortunately the only person it's affecting is me but my son is 5 months old so this is been going on for a while. has anyone else had something like this happen