I can't remember whether U R using VA treatment Northergirl? Also a gentle scalp massage with baby oil, leave in a warm towel for 10 mins B4 rinsing may help, advised by my hairdresser several years ago. Then she retired

. She also told me that the hair follicle becomes slower to put out the next hair as we age and not to wash the hair too often. Avoiding the hair dryer can help, I've always used a warm towel.
A gentle shampoo too, what's suitable for baby is suitable for me.

I swap products too. Rinsing with warmed water is soothing.
It was my insteps when I first went into peri, I would wake with one rough heel scratching the other foot! Also down my back would itch after my bath. Fortunately neither symptom lasted for many months.