(Concern) My blood circulation is very poor.

Hello. These days, even when I eat less, I have trouble digesting and I feel a significant decline in blood circulation, which worries me. My lifestyle habits haven't changed from before, but when I wake up, my face is extremely swollen and my legs feel stiff and swollen. I've tried soaking my feet in hot water and walking a lot, but it doesn't help. Sometimes I get cramps in my legs and wake up. I've also tried elevating my legs while sleeping, but I still feel like my blood circulation isn't improving.