Jordie - I am just like that in first tri. In fact today has been my 'magic' day. I feel alive again. I have just spent 2 hours cleaning, & went to the gym before that. I am FULL of energy. But the last 2 months were horrid.

So my only advice is: go with it. Your body is working super hard ATM, so rest up. And no you are not doomed to be like this forever! LOL