I had to chime in... I've been dealing with the same issues since running MCM at the end of October. I knew I should have reverse tapered, but I felt soooo good after taking the first week off (technically, "off" = 2 mile daily walk and a light jog thrown in here and there), that I went back to my almost usual routine on week 2.
After a 4 mile trail run the Sunday after the race, I then did a few HOURS of yard work. Run Club the next day, strength training the next, and about a 3 mile run on Wed. All that work I did to repair my hamstrings in time for the race was completely undone in a week! I made it through 26.2 miles, then injured myself overdoing it during recovery!
I ended up taking nearly TWO weeks off to recover, and now I'm *eeaassing* back into it like I should have the first time. Just did a Turkey Trot, and I'm doing a 15K this weekend, but I'm not looking to bust any records!
Don't think, just do