Is around 300-350 lines Ultherapy for face and neck too much?

I had ultherapy done at a doctor's office. He told me he did 150-175 lines on each side of the face (can't remember exactly), from lower lash line down to neck. The whole session took maybe 20 minutes, maybe more or less. Is this too much? Im experiencing some negative side effects and I dont understand why. Could the technique have been wrong? Also, my face already looks thinner and it hasnt been 2 months yet. Is this normal due to tightening? Or is it too early and Im having negative changes?