I've read that some AI's may rid estrogen to the extreme and serious fatigue.

So it seems that one would want to avoid an AI that was too strong. So this is my deal: I'm on test E, my bodyfat is getting pretty low yet I look kind of wet and smooth with blurred vasularity no doubt due to water retention. I'm trying to decide on an AI but one that won't fatigue or depress me because my training is going so well and I feel like the savage beast and I don't want to break this animal way. Feedback? Any suggestions here is greatly appreciated.