We had three chemtrail free days here in Indianapolis and it felt so good to see normal skies. However, this morning I stepped outside and I could smell that chemical odor and when I looked up and there they where. I also have a headache this morning.

That's interesting.

I experienced a 4 day break only 1 time in the last 5 years.

Before the break, all of the chemtrails were persistent and left huge plumes in the sky day-after-day.

After the break, all of the new chemtrails were non-persistent and dissipated in seconds.

Here are some details: http://globalskywatch.com/stories/my-chemtrail-story/chemtrail-information/plumes-change.html

You mean like this Pi sign I captured yesterday?
http://picasaweb.google.com/kennyg357/Chemtrails41141210#5459348351632074002
They only lasted a minute or two. Almost made me think they where contrails.

Yesterday they also made these clouds which almost look real.
http://picasaweb.google.com/kennyg357/Chemtrails41141210#5459348347389254146

Today I was watching them spray at work and the plumes did only last a minute or two but it was constant spraying for six hours. My throat feels like there is a needle stuck in it and I have a bad headache again. When I got home I grabbed my camera and the spraying took a turn. The plumes are rapidly expanding and fading quickly as in this photo.
http://picasaweb.google.com/kennyg357/Chemtrails41141210#5459348356879414386

In no time the entire sky was covered in a haze like on a hot humid day except the humidity is only 36%. I tried to capture the haze in this next shot. Right now the sky is completely white. There is also a chemtrail streaming across the photo from the bottom right corner to the top left corner which is disappearing quickly too.
http://picasaweb.google.com/kennyg357/Chemtrails41141210#5459348359578896018

It seems like they are doing all kinds of different types of spraying.

Update: There are 8 jets spraying now and all the trails are disappearing within a few seconds as you suggested they may.

Yep. They've been doing that here for months.

For a year all trails were persistent. Then suddenly, one day, all trails were short.