"Bouncing back"

Our miscarriage was confirmed on February 23rd and since then I have been so heartbroken. We were never so happy as the day We found out we were going to be parents and it was all taken away. I know grief will be normal, but I feel like I'm falling into a depression. I can't sleep, I can't eat- I've lost about 8 pounds, I don't even cook dinner anymore, I'm barely functional at work, I don't want to leave the house for anything etc etc. It scares me because I've never felt like this before. I don't know if there's a "normal" for something like this, but how long did it take you to bounce back and start feeling "alive" again??