What am I doing wrong?
I've been doing gym (weights) for about 10 months and I've never had this problem:
Until now I have had no problem with the loads especially to progress in my opinion also in physical appearance, but now I have this problem, when I am at the end of the session and I miss 2 exercises I feel a feeling of headache and that I am short of breath, maybe it is because of the heat because I do not know otherwise what the cause is, maybe also the fact that I drink little water during the day, I care enough about nutrition only this week I ate out but because I had no choice, I move enough during the day, I do about 3000/4000 steps on average a day, I ask for help.
My data:
15 years
Male
About 1.80 meters
63 kg
fat%:~11%