Fatigue and calories

After a long time of not training and gaining a lot of fat I’ve decided to start again. At the same time (about 6 weeks ago) I also started a job after not working. I’ve noticed myself feeling much more sore than usual, and getting sick more often (for reference in the past 6 weeks I’ve gotten a cold twice and feels like a third is coming on while in the 18 months the before I got a cold just once)

I’ve heard In the past that on big deficits you’re more likely to get injured/sick/sore but I thought this was just broscience l. Was I wrong?

I should also add that my total calories was calculated before I started working. I’d say my job is a 4-5 of out 10 in terms of physicality for 8 hour shifts and I wasn’t sure if that would burn enough calories to matter. I know a new job brings new strains but I thought I would have adjusted by now

I don’t think your energy intake is likely playing any significant role here, particularly with the soreness and illness. I’d be looking at training program and exposure to infectious agents for both, respectively.

This all presumes you’re not seeing some signs of energy deficiency. The phrase “big deficit” raises some concerns. Not sure how much weight you’ve lost and what level of energy intake you’re shooting for.

Right now I’m aiming to eat around 2000 calories a day (~70g of fat, ~160g of protein, rest in carbs) while weighing ~95kg. My training is pretty standard stuff. 3 days a week consisting of squats, presses and pulls (usually a top set @ 7-8 then 3-4 back off sets with % drop off) then some BB stuff if I can fit it in.

Yea, I’m not sure what your height, age, etc. is, but 2000 Cal/d is unlikely to produce low energy availability. Training may or may not be contributory depending on what it actually looks like relative to your fitness levels.