Good morning, day, evening, are there any girls here who take good car…

Good morning, day, evening, are there any girls here who take good care of their weight? This morning I was gathering my husband for work, his weight was 76.5, I had porridge for breakfast, didn't go to the toilet much, and the weight is 75.5. Why does it fluctuate so much? Also, since yesterday, there has been general malaise, I sleep constantly, and from the evening, the place in the area of the frontal bone started to hurt. I suspect it's due to training, I am going to the doctor tomorrow.