Severe Nausea and Cramping Day After Cavitation Lipo?

I had my first session of cavitation lipo yesterday evening on my abdomen. I always drink at least 80oz of water a day and eat healthy. I went to the gym after the treatment and feel asleep feeling fine. I woke up this morning with severe nausea and cramping in my lower right abdomen (lower than the treated area). I also had lose bowel movements last night and although I feel the need to go now, am unable to. Is this just a coincidence or could they lipo and sickness be related?