I have the sickle cell anemia trait. what are the cons it can have on me now and in the future?

Very few problems: The vast majority of the time sickle trait is clinically silent, meaning you will experience no health issues due to its presence. Rarely persons with sickle trait can experience sickling if they get dehydrated or exercise vigorously at high altitude. The major issue is understanding how sickle cell disease is inherited and your risk of having a child with this depending on mom's carrier state.