Is it a normal that after my first Viora Reaction Session the skin of my abdomen looks more flaccid and loose than before?

I am very skinny, no fat . After the session the skin of my upper abdomen got very loose and fluffy which was not like this before and the Lower part of my abdomen swollen and protruding. Why did this happened ? The doctor who did the procedure says it is s normal reaction and in two days it will get better, but isn't it supposed for the skin to get tighter and not the opposite?

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