Becca! So glad everything went well and you are on the mend.
Hey Laurie, 20 pounds in around 4 months is definitely doable - that's 5 pounds a month, a little over a pound a week. Time start stratagizing. You know... alternatives to the fatty, sugary snacks, replacing the high carb foods with veggies of the lower carb variety, and just saying no to dessert.
You can do this... a week at a time, a meal at a time. It just takes some planning.