Clothing (Hevingham NR10)

Desperately require small size clothing please , anything gratefully considered. Due to poor health I’ve lost weight and cannot put any back on, I wasn’t very big in the first place! Majority of my clothes are now way too big and I feeling the cold much more! Currently range from size 4, 6, 8 on bottom, yet size 6, 8, 10, 12 on top (why can’t all brands be standard in their sizing??) Thank you.