My body is failing me 😭

I am only 6 weeks PP ans my body is letting me down. Over the past week I have noticed a dramatic decrease in my milk production. My baby is extra fussy and starts crying after feeding for only 5 min. I use to be able to breastfeed her for 20-30min per boob. I thought she was just tired so I tried pumping and nothing came out. My boobs are empty and thin. They aren't feeling large full anymore.

Oh. And let's top it off with my period starting 🤦‍♀️ My PP bleeding stopped about 2 weeks ago. Now today I am bleeding moderately and have cramps. I dont wanna leave the couch due to my cramps 😭 why is this happening to me!!!!!