My daughter has been shuddering quite a bit the last few days. The most once seen her do in one day…

My daughter has been shuddering quite a bit the last few days. The most once seen her do in one day was 3. She's also started running a mild fever last night. She was vaccinated on Wednesday. I don't know if this a coincidence or something is up. Has anyone had this happen to their child? They don't last long, like a regular shudder, but just seems to happen too often.