My baby is almost 7.5 months old and I COMPLETELY quit breastfeeding a couple of weeks ago. He began eating more than I was producing and once we started introducing solid foods to him, despite nursing still with each introduction of solid food I just wasn't making enough to keep up with him. Shortly after he was 6 months I had to give him formula a few times here and there because I didn't have enough and after a week or two I was only able to feed him if he woke up once in the night. I think I've dried up completely and my irritability/sadness lasted all of last week but it is gone now and now I'm feeling tired and weak and get light headed and have barely any appetite. I understand that last weeks mood was due to ending breastfeeding but now I'm not sure why my health seems to be affected.