I am finding that when I am on my feet too much I get tired too and my feet hurt. The other day I went out for about 2 hours and was only really on my feet for an hour and came home and went to sleep!

I am not too sure what the second tri energy is!! But I do know that I feel like myself now and I am doing what I used to do but taking it a lot easier. I dont think the second tri energy means that you can go out and run a marathon... And you are probably getting more tired because of the extra weight that you are carrying around, that is what I am finding anyway..