I was sleeved December 17, 2015. It's getting better but I'm with you on the weak and tired. Went to support group last week for the first time and it helped so much. Just being around others who understand. Not that my husband and family don't understand...it is different when you talk to others who have where you are.
They said to take it slow. You're only eating 400-500 calories if that. You're not going to feel like doing much for a few more week. Take your time to allow your body to heal.
So that's what I plan on doing. Be patient with yourself! We will get there. ????