I had a similar sickness hit me about day 3 of a 2-weeker of 10mg. I had a hard time eating, & training suffered bigtime. I was still able to train, but I was real weak so i cut volume back a little. I kept taking it, just powered thru it & added 2 days to the end of the cycle. I felt fine by day 8, & thats when I started to get great gains.