Night Sweats/Cold sweats during period?

I'm 37 years old and I've noticed for about the last year that I get night sweats one day prior to my period starting & during the first 3-4 days of my period. It is also harder to fall asleep on those days.

The only lifestyle changes I've made are that I've started eating healthier this past year & I workout 5-7 days a week now. (Lost 20 lbs of body fat! 😁 I used to weigh 140.8 lbs)

I'm 5'7" & my weight fluctuates around 119 lbs to 122 lbs (I always weigh a little more before my cycle starts).

I've read that it could be Pre-premenopause but I have NO other symptoms other than the night sweats & difficulty falling asleep.

I've also read that it could be due to low body fat or diet.

Any suggestions to make the night sweats go away? I hate them.

Anyone else close to my age experiencing this?