The same thing happens to me. My neuro said this is common place and nothing to worry about. For me, after 28 doses, some infusions make me more tired than others. For some, I am actually fine without the fatigue! Love those times but the norm is fatigue that slowly wanes and my energy levels return.
Hope things go smoothly for you!
Ren
You're certainly not alone. I've read this among many other Ty users, and I feel the same way for about three days after my infusion. I also "crash" abut 4 days before my infusion! So, I kind of lose a week/month as a regular way of life. I also feel like Tysabri is doing great things for me.