Dropping weight

I'm sure eating less has something to do with that. Down 10 lbs in a week. Not a healthy loss. Don't know if the weight is going to come back or not. I don't think so. I am eating more though. Still sleeping a lot, tired a lot. Still have a lot to unpack. But I am working the pullup bar a bit. No strap for help, and can almost get full pull in, from the standing position.