The decision weighs 'heavily' on my mind. [=the decision is difficult and causes me to feel worried]
Our flowers were 'heavily' damaged by a late spring frost.
She sighed 'heavily' then said “Okay, I'll do it.”
(..) I suppose I could try getting rid of the golf ball. Oh. Okay. I will always have the dent to remember it by. (sighs heavily) You did it. Do you feel okay? Actually, yes. I do. Well, I'm proud of you. (..)2016 TvShow: The Big Bang Theory Title: The Solder Excursion Diversion Season: 9 Episode 19