Hunger

I was wondering if anyone here does a lot of cardio and is also just constantly hungry despite being on the medication? I run 35-40 miles a week, get 20k steps daily, and lift 5x a week and im always hungry. i try to eat/stick to 1400 cals a day but that usually fails and most days im at 1600, but my weekly average is around 14-1500 always. do i need to increase my dosage?