Bones cracking (popping) all the time?

Ever since I moved to my ballet school I have found my bones have been cracking all the time! At my old dance school I only did about 4ish hours of ballet and a pointe class, but I did a lot of jazz, tap and contemporary. At my new dance school I do a lot more ballet but not as much jazz and contemporary (I quit tap). Also the ballet I do now is much much harder and I find I am always try my absolute hardest. Everyday when I wake up my feet, hips and neck keep cracking. I find that now every time I stretch my foot or go en pointe it cracks heaps, and at the barre my hips keep cracking (popping). Also when ever i just turn my head my neck cracks! Even though it doesn't hurt I was just wondering if all this crackinging might lead to future health problems (like arthritistus etc.)and is there anyway I could stop it? Thanks xx