Fatigue During Calorie Deficit

So I recently added two additional conditioning sessions to my training week, and shifted to a calorie deficit to lose weight after a couple months of gaining. Training now consists of three lifting days per week with a short conditioning session at the end of each (7 minutes farmer carries one day, 13 minutes jump rope/decline situp superset two days), one jogging day, and one day of chins, bearhug carries, sandbag shoulder each done AMRAP style for 7 minutes. This permits me two rest days per week. Nutrition-wise, I’m consuming 2,300 hundred calories per day (6’1", 205 pounds).

I’ve noticed the past couple of days that I feel generally drained energy-wise. I’ll be okay after waking up and having some coffee/breakfast. If it’s a training day, I can even train without a problem. But I’ll start to feel pretty tired about an hour after training, or if it’s not a training day, around nine or ten. I feel okay physically, but mentally, I feel sluggish, like I need sleep. I’m not actually sleep-deprived, though, and average 7-8 hours a night.

I know that there are a lot of reasons this could occur, and that ongoing fatigue might necessitate a visit to my doctor. I’m wondering, though, if it could also be an issue of too much training volume with too steep a calorie deficit. Is it possible that I’m just accumulating too much physical stress without adequately fueling my body, and that adding a few more calories per day might help? Again, I know there could be many other variables at play, just wondering if that’s in the realm of possibility before I schedule a visit to my GP. If it’s of consequence here, when I went in for a physical and labs last year, everything came back perfectly normal; no chronic health problems or anything like that.

I don’t think it’s likely to have much to do with training or nutrition, unless your life stress (or other inputs like sleep) have markedly changed.

Put a different way, I’m not sure that an extra 60 min of activity is likely to cause very significant fatigue…though I’m not sure what your baseline is and how that varies.