Swimming in another dimension

I don't know why, but I felt great in the water yesterday morning. The main set was 3x200 on 2:50/2:45/2:40 + 3x100 on 1:40/1:35/1:30 + 100 cruise on 2:00 two times through. I can't believe how fast I am swimming right now. The crazy part is that my 1st 100 and last 100 of the 200s were the same. I couldn't go any faster or slower. That was a, "Go buy myself some pineapple upside down cake for having a great workout and eat the whole thing :-)" I finshed with 4k.