Do you happen to be biologically female? Your pattern of weight loss is pretty common for women. Because women's hormonal paths fluctuate on a monthly rather than daily cycle, water retention tends to also happen in cycles. As a result, weight loss seems to stagnate very often, even with consistent CICO, often for weeks at a time, while bloating/swelling may occur in many individuals.

This can fluctuate much more with people who have hormonal issues that cause inconsistent, monthly hormonal cycles, too.

It may be something to keep in mind. It's why people suggest "weighing yourself at the same time", but that caters much more to a traditional male "inner clock" than a female one.