I just recently got put back on it. I'm on 50mg, upping to 100 tonight and 150 in a few days.

I've been on it before though. I've been on both the regular and the XR and I found the XR really helped me not be as tired. So maybe see if thats a possibility for you. Also I found keeping busy helped. If I sat or lay down for too long the tiredness overtook me.