OMG, that was so funny threenorns & baker!
CHUNKEY_MUNKEY -- yes, that's not the usual ALL the time, but not uncommon at the start since you are also losing water bloat. Tracking food usually comes with better sodium as people drop the processed foods and whoosh! All the water retention from sodium goes away.
Just try to relax and take some notes. In time you will know what YOUR normal flux -- from eating, bathroom, period, sodium, etc.
I know my normal is to bloat up and when the WHOOSH! of 3-5 lbs off happens? I'm getting my period within 24hrs. It's not real fat loss.
I also know if I had unexplained "gain" to check the sodium in my food log lately. That's usually why, usually on the weekend from dining out, so a smaller whoosh will happen when that's back in check. It's not real fat gain.
Scales are good tools, but just
tools that just
show changes in weight. It can't tell me I stuffed my pockets full of rocks and that's why
I weigh more. It can't tell I just used the bathroom and that's why I weigh less.
Keep your sense of humor, keep the scale as just a tool and not your mood meter, and you will be fine.