Lindsey Sharon Coulter collapsed at a gym on Friday last week and was unable to be revived.
She was working as a community nurse and was due to be married in October.
She was buried in the graveyard at St John’s Church in Fivemiletown, Co Tyrone, the place where she was due to be married.
Only 27, the young woman was a former pupil of the local Fivemiletown college and studied nursing in the University of Dundee.
The gym in question offered their sincerest sympathies to Ms Coulter’s family stating “Everyone at Colebrooke Fitness would like to offer their deepest sympathy to her family and friends. Lindsey was loved by everyone and will be greatly missed”.