Hair loss, hot flashes, cold feet and.

Hello, I have many/numerous symptoms which have made me feel very awful/feeling terrible and made me extremely depressed. Since I had my one and only child almost two years ago I have been losing massive amounts of hair (in the shower in the drain and find hair all over my clothes and on the floor). It seems to be all over my scalp (meaning diffuse hair loss?). I lose both long hairs and short baby hairs. No hair loss seems to happen elsewhere on my body except for that it looks like I have lost some pubic hair. Since my boy was born I did not have periods for over a year and I went to a doctor who gave me pills that are "dydrogesteron 10mg"(progesterone?). I took it for 10 days as ordered but I did not get my periods with it. The doctor told me to take it again. So I took it for two more times (the 10 day round). After that my periods started and they have been coming almost but not exactly regularly after that. But the periods are not the same as they were before these problems s