Curious as to why I have never had a sense of smell until I was put on an SSRI and then boom I could smell everything, even more so than when I was pregnant. I was taken off of the sertraline due to other side effects I was having. My doctor is unable to explain why exactly my sense of smell came back, I was curious if it may have been a blood flow issue or another underlying factor. I am typically always cold and my skin is often purple, when on the sertraline my heart was always beating ridiculously fast and my skin was often either a normal pigment or pink because I was so warm.