Going to the gym with fatigue...

I've been trying really hard to keep up with going to the gym.  I've managed to go 5 times last week and I'm going to try to do the same this week.  I find that going in the morning has been easy for me to do.  Scottie wakes me up every morning by 5AM anyway.  It's been impossible to stop him.  No matter what.  He makes noises, cries loudly, walks on the furniture and knocks stuff over all in an attempt to get me out of bed.  Well it worked and I decided to be productive so I go to the gym for a 30 minute run on the treadmill.  The only thing that's getting me down now is the contant fatigue.  Right now, I can roll over and go for a nap.  It's 11:20AM.  I had a nap on Sat and Sun but I'm determined to make progress today.  I am worried about why I'm feeling this way.  I've noticed a huge spike in my morning BS levels.  Today was 170.  I'm not sure if it's my BS causing the fatigue or my underactive thyroid.  I can try to control the BS.  I'm going to start measuring my food again.  I've gotten sloppy so maybe thats the answer.  I've got to know how many carbs I'm eating per meal.  It gets so old having to measure everything and watch everything I eat.  One of my coworkers is a type 1 diabetic and I'm always hearing people talk about her behind her back because she doesn't watch what she eats but I know from my own experience, it's easier said than done and no one should be judging until they walk a mile in her shoes.  Anyway, I need to start getting this right again. I hope I can.