Usually after a good tough workout, I feel exhausted and pumped up and then if I have used enough intensity, I get serious DOMS. In particular, the day after a 'push' day, I get serious muscle soreness and tightness in chest, shoulders and triceps.

BUT - even though yesterdays workout was really good and I went up in weight and reps for all exercises, today my muscles are actually smaller, not sore, vascularity has disappeared and i have a general. I have a general soreness throughout my body, but flexing my chest and triceps yeilds little to no pain.

Any ideas what this could be a result of?