low blood sugar

Has anyone had a problem with low blood sugar and are not a diabetic since having a gastric bypass? Help..........puzzled here............

After Gastric Byprass or a Duodenal Swith has anyone experienced LOW blood sugar, and Anema and hair loss? Please help me, I just can't tell decide which type of surgery for gastric bypass. Any suggestions and comments are really appreciated. Thanks a bunch. Rhonda