Asking questions about losing weight?

i am a 45 year old woman i have a question to anyone who is dieting or has lost a lot of weight . iwas at one time 408LBSand i am now at 333LBS and i have noticed i get really cold a lot however i just found out thru blood test i am at menopause stage or close to it and i notice the signs i am very cold my body will feel ice cold i feel like i have the chills then when i cover up to get warm then i get real hot and sometimes even sweat at night . my question is now that i have lost about 75LBS could that be why i am feeling so cold all the time even my fingers will feel like ice and a will see a bit of blue under my fingernails something i never noticed all this until i have dropped that much weight . if anyone has had anything like this please let me know , thank you