Nightmare of a period this month.

Every now and then on my period I get like different pms symptoms, it's usually easy to recognize, nightsweats, anxiety, headache, cramps, bloatedness etc but this month I have a very weird symptom, I am experiencing anxiety with slight tremors in my body. It's almost the end of my period and the tremors got a bit less frequent now. Who else has experiences this before? The internet ;) will make me think I have MS or Parkinsons 🤣 so before I run to the doctor, I just want to know if this might be because of hormones. It almost feels like when you are hungry and you start feeling shaky, but only on the inside. Might be the anxiety?