Is it always a bad idea?
I did 5 miles on Monday and 5 miles yesterday. Both runs were fairly slow (mostly 4.5 and 5.0 speeds on the treadmill). I have a 4 mile race on Saturday but I don't care at all about my time. I was planning on taking today and tomorrow off, but I really want to run tonight.
Nothing gives me an endorphin kick and puts me in a better mood like completing a run and right now I could definitely use an endorphin kick. I want to go for a 3 mile run, but it could be further as my 3 mile run yesterday turned into 5.
I usually don't run more than 12-15 miles a week and if I do 3 today and 4 on Saturday it will be 17 in total.
So, wise exercisers, should I go with my heart and run because that is what I feel like doing or should I use my head and play it safe by getting a couple of days rest before the race?



That probably put a slight dint in the total!
Not a problem. But running brings on odd aches and pains if I run more two days in a row. Had I popped in on the thread earlier I'd have suggested some cross training, like the bike, the elliptical (though I think you said it's uncomfortable, possibly due to height) or the rowing machines, or running stairs or jumping rope.