does anybody else ever?

when i do a heavy-high volume-deadlift or squat session about 2 hours later my appetite goes through the roof…i get hunger pains every 2 hours why is this?
does this happen to any one else?
ps. my other training seesions never make my appetite raise. and i do have a post work out shake as soon as my last rep is completed.

who cares. just eat something

Those 2 movements tax the metabolic system in a huge way. Squats use about 70% of your musculature and DL use about 85-90%. No other movements aside from the O-lifts come close to those percentages.