I am 4 weeks out and still lethargic. Like you I have periods of energy but this quickly passes. I am not getting all the protien in and maybe that is why. I am also still sore on the left side. I had a hand assist which required an extra 2 and a 1/2 inch incision up from the belly button. The pain is on the left side where one of the incisions will not close and it leaks all day. I hope you get to feeling stronger. I suppose if you losing alot of weight some low energy is normal.