Not Cool Bro wrote:
Listen to your body and if it's getting very hard or you're feeling aching/pains then stop.
Ideally, one 100 mile week should be "easy" before you start trying to do multiple weeks at that volume back to back. Since you've only done a couple of them I doubt yours were easy.
Listen to your body. The key is the feel good, or reasonably good. If you are getting through the weeks but you feel like each run is a huge struggle, back off. You should feel tired if this is the first time you shoot for consistent 100mi weeks, but not to the point where the quality of the runs are severely suffering.
A good general rule is to follow the "Three weeks up, one week down" schedule. Three weeks at 100mi, One week at 20% down to recover and recharge. If you keep going 100mi/wk for 5+ weeks your first time, it may be digging you into an overtraining hole.