When we moved into our home there were numerous trees that are well established. Since we came from Calgary, lots of trees are a real bonus. There is one tree that I have not ben able to identify. It is the same colour as a Colorado Blue Spruce, and has the same needles, but it is about 4' high and then it grows sideways. It must be 20' long now. There are numerous drooping brances from the main horizontal trunk. It has quadrupled since we moved in 4 years ago. There is noticable growth on a weekly basis. We were away over the weekend, and this afternoon, I noticed that some of the branches, have become a rosy colour, which doesn't seem good. Should I just cut those off. This tree/bush hasn't any problems being cut, it just produces more side branches. The main trunk must be 15" in circumference. The bark is a lovely silver colour, (it is nice to spell in the Canadian manner again, eh).
By the structural description, I'd say you probably have a Cedrus atlantica 'Glauca Pendula' (Weeping Blue Atlas Cedar). Maybe post photos of the changes you are describing and I'm sure someone will be able to advise you on the situation.
If it has exactly the same needles etc. as the spruce it is just one of the cultivars that grows with a weeping or irregular habit, or it's a graft from a side branch of an upright one that never developed hormones for upright growth after being severed from the parent tree.
