well look at your extra 3 years this way :
I hated doing general peds, and couldn't wait to start my fellowship.
The idea of doing what I really really liked every day, and taking care of really really sick and unusual patients was a huge plus.
fellowship went really fast. I loved 95% of it.
The learning curve was almost vertical!
I can't possibly imagine working as an office based pediatrician, looking at ear drums and diaper rash, and writing ritalin scripts ( all for a salary about 1/2 to 1/3 what I am making now that I am out of fellowship...... ( I am not saying that a career in pediatrics is a bad job , just that it wasn't for me, any more than I could see myself doing IM or surgery. Thanks but no thanks )
Fellowship time is a lot of fun.
If your goal is not a career in research, then try to pick quick and easy projects that will generate multiple abstracts ( which equals multiple trips to meetings !...which are good excuses to party on your programs tab )
I would run multiple assays on the same tracheal aspirates, and write up each one seperately. I presented at a lot of meetings which are a great place to meet fellows from other programs, and meet the people that are writing the textbooks.
My message to you is that your career in medicine is a journey with no destination. See the big picture.
If you love one particular area, then doing the fellowship is a great time. Yes, it's more of a hardship working for 40K/yr, but some places allow you to moonlight so you can make a bit more.
General peds pays for crap! You aren't going to be rich on 100 grand a year. ( even though the demon-crats will call you rich ).
IF you do a subspecialty that pays twice as much, you'll quickly catch up.
Making a lot more money, AND doing something that you enjoy makes all the difference.
Medicine is a lot of work, but as the saying goes, " a man that loves his job, never works a day in his life"