I'm prolly echoing what had been said - particularly from Mallio and Eden.

Rest days are imperitive and this does sound suspiciously like over-training. People can interpret increasing training meaning alot more training... when in fact you must build in rest days, or slow recovery rides, to ensure your body/muscles have time to respond to the demands and change accordingly. You are asking your metabolism to change and this takes time... and resting is an important part of that time.

Have you made a jump in mileage since you joined a team? It is not recommended to increase mileage too quickly... about 10% a week or something like that I think.

You say "propper nutrition--I eat a lot of meat and veggies"... I wonder about your carb intake the night before a long or high-energy ride. Plenty of pasta or rice with your meat and veg the evening before?

I've prolly just repeated... experiment with caution and wisdom, and you will work out the "why".

Looking forward to hearing that your energy levels have returned...