Have you been in for blood work? Some people have issues with vitamin deficiency. Are you taking your post op bariatric vitamins as directed? Are you getting proper nutrition?
By a year our, I felt great. I'm 3 years out and still feel fabulous. I have so much energy and the finally have the physical ability to BE active. So, no you should not be exchanging sickness. First get a check up, some blood work and see what's going on with your body. Good luck.