@LSUlakes I had to take time off in 2011 after I developed a C5/C6 herniated disc. I was off running for about 3-4 months. Came back and ran a 5k to see where I was fitness-wise. It was decent, but nothing spectacular. But using that as a baseline, after a few months of training, I was back to PR level half times. And I was in my 50's. So I expect you will return to form much faster.
Apropos of this.......I dreamed up this little ditty while rehabbing. Sung to the tune of "When I'm 64" by The Beatles (for you young'uns)
As I get older, gray in my hair, creaky joints and all
Will I still be able to run sub-9?
Win my age group, feeling so fine
Now I’m just jogging, here at the gym
Treadmill’s such a bore
I was so speedy, now I’m just needy
Stuck on 6.4
Every summer I will pick a plan to help me run a fast race, and it will be clear
I will train and train
Hill workouts once a week,
Fartleks, tempo, pain!
Plug in the Gramin, download the stats, time for a review
Indicates precisely what I ran today
Slower, slower, fading away!
Maybe I’m old and maybe I’ll be
Slow forevermore.
I was so speedy, now I’m just needy
Stuck at 6.4
Since then, I have PR'ed my 5k and 10k, so all was not lost!