i highly recommend you go for follow up. if you can't go to the doctor who did your surgery then find another bariatric surgeon that can follow you. they will check your blood looking specifically at vitamin b12 vitamin d iron and folate levels. you also should be taking supplements on a normal schedule as well as following diet guidelines. both the doctor and dietitian can help keep you on track. don't delay!
i had gastric by-pass surgery in 2005; haven't had much follow up. which blood tests and levels need to be checked?