Why am I so tired?

Eat more. You really aren't exercising "too much" unless your lifting sessions are crazy. But you do need to properly fuel that exercise. 1300 seems WAY too low for your age, weight, height and being at maintenance level. See my figures below. You need to recalculate.

I'm 5'8, 24, 188lbs and set to lose 1lb per week at 1590 calories. My HR monitor tells me I burn 600-2000 calories in exercise 5x a week. I was eating only 50% of my burn back and even with two rest days per week I was tired and hungry all the time. Started eating 75% back and am feeling much better.

Try eating more for a few weeks, if it persists go to a doctor!

I don't think any of us are doctors so I would start at the doctor. I'm having a lot of the same problems. I had more energy when I was 318 lbs then I do now but I'm pretty sure my culprit was my bed and I got a new one over the weekend! LOL but seriously, contact your doctor. I did. Had to take some blood tests. You may be deficient on iron. I dunno, but a blood test could tell you.

vinegar_husbands wrote: »

kgeyser wrote: »

Your BMI is actually 18.9, not 19.7, which means you are bordering on underweight, which is one thing to consider.

You're also not eating nearly enough for that level of activity. You should be closer to 2000 calories just to maintain your current weight and activity level, and probably a little more since I went with 3-5 hours of moderate exercise in my calculations, and that was a conservative estimate just demonstrate how much you are undereating right now. It's no wonder you're tired, and you're actually increasing your risk of injury by undereating and doing that much exercise.

Which BMI calculator did you use? She's 19.7 on this one.

I don't remember which one I used, but if that result is an outlier compared to what everyone else is getting, then it's probably incorrect.

OP, if you are eating 1300 plus exercise calories and are still tired, I would talk to a doctor and get a blood test just to rule out a medical condition.