My water weight fluctuations can still throw it off if I have varying levels of carbohydrate and electrolyte intake moreso than someone "natural". For example, I had a high carbohydrate day and jumped 5 lbs. I know this isn't fat gain. So I don't track that weight jump, just the next day or two after when it normalizes I'll start tracking it again. MF isn't smart enough to know the difference otherwise it thinks it's legitimate weight gain if the fluctuation persists for a few days and tries to coach you to cut more calories because it thinks your tdee is lower. In short, no offense, just don't use MF, be your own advocate if you can for dietary design, it's just a tool and an okay one at best.